Welcome to your first VTuber terms dictionary! If a chat full of words like oshi, kusa, PON, teetee, seiso, kirinuki, and gachikoi looks like a different language, you are not imagining it.
VTuber culture combines ordinary Japanese, idol-fandom vocabulary, livestream slang, and community-made jokes. This guide organizes the most useful terms by topic, so you can understand streams and fan conversations without memorizing everything at once.
- 1 VTuber slang explained: the essential idea
- 2 Basic VTuber words
- 3 VTuber fan words and “oshi” vocabulary
- 4 Words you will see in VTuber chat
- 5 Common stream formats
- 6 Content and career terms
- 7 Mini example conversations
- 8 How to use VTuber fan words respectfully
- 9 VTuber slang FAQ
- 10 VTuber terms dictionary: summary
VTuber slang explained: the essential idea
VTuber slang is not one single language. It is a mixture of Japanese internet expressions, idol fan words, livestream terminology, and phrases that developed inside individual fandoms.
Some words, such as 推し (oshi), are now common throughout Japanese popular culture. Others, such as ガチ恋距離 (gachikoi kyori), are especially recognizable in VTuber and livestream communities. A few terms also change meaning from one agency or fandom to another.
So I do not need to use every word myself, right? I mainly want to understand what people are saying.
Exactly! Start with recognition. Many of these words are casual, fandom-specific, or joking. Understanding them is more important than forcing them into your own Japanese.
Five terms to learn first
● 推し (oshi) — your favorite creator or character
● 箱推し (hako-oshi) — supporting an entire group or agency
● 草 (kusa) — “LOL,” literally “grass”
● 切り抜き (kirinuki) — an edited clip from a longer stream
● 卒業 (sotsugyō) — a VTuber ending activities under the current identity
Basic VTuber words
VTuber / V
A creator who performs through a virtual avatar. Japanese fans often shorten VTuber to V, as in V界隈 (“the VTuber community”).
ライバー (raibā / liver)
A livestreaming creator. NIJISANJI officially uses “Liver” for its talents, but the word can also be used more broadly in Japanese livestream culture.
デビュー (debyū / debut)
The official beginning of a VTuber’s activities, usually marked by a first stream called 初配信 (hatsu-haishin).
初配信 (hatsu-haishin)
Literally “first broadcast.” It is the debut stream where a VTuber introduces their name, character, goals, hashtags, fan name, and model.
○期生 (…kisei / generation)
Members who debut as the same intake or generation. For example, san-kisei means “third generation.” English fans often say “gen.”
箱 (hako / box)
Literally “box,” but in fandom it can mean the whole group, project, or agency. This is the hako in 箱推し.
企業勢 (kigyōzei)
A VTuber affiliated with a company or established agency. The word contrasts with 個人勢.
個人勢 (kojinzei)
An independent VTuber who manages their activities without being a standard agency talent. It does not mean they work entirely alone.
ママ (mama)
The illustrator or character designer who created the visual design. It is a fandom nickname, not necessarily a statement about gender.
パパ (papa)
Often the Live2D rigger or modeler who makes the illustration move. Usage varies, and some creators prefer their professional title.
設定 (settei)
A character’s official setting, profile, or lore: age, species, world, job, backstory, and so on.
RP (āru-pī)
Role-play: acting consistently with the character setting. Some VTubers maintain strict RP; others treat lore more loosely.
VTuber fan words and “oshi” vocabulary
The dictionary meaning of 推し is something or someone you recommend because you like them. In modern fandom, it means the person or character you especially support.
推し (oshi)
Your favorite creator, idol, character, or team—the one you actively support.
最推し (sai-oshi)
Your number-one favorite when you support more than one person. Sai means “most.”
単推し (tan-oshi)
Supporting one particular member rather than the whole group. Tan means “single.”
箱推し (hako-oshi)
Supporting an entire group, generation, or agency rather than choosing only one member.
DD (dī-dī)
Short for 誰でも大好き (dare demo daisuki), literally “I love everyone.” It describes someone with many favorites and may be playful or mildly teasing.
推し活 (oshi-katsu)
Activities done to support and enjoy your favorite: watching streams, attending events, buying goods, making fan art, and discussing them with other fans.
ファンネーム (fan name)
The official or commonly accepted name for a VTuber’s fan community.
推しマーク / ファンマーク (oshi māku / fan māku)
One or more emojis representing a VTuber. Fans may place them in their display names or profiles.
古参 (kosan)
A long-time fan who has followed the creator since an early period. It can be neutral, proud, or joking depending on tone.
新規 (shinki)
A newer fan. It literally means “new” or “newly joining.” A healthy fandom should not treat new fans as less valuable.
同担 (dōtan)
Another fan who supports the same favorite. 同担拒否 (dōtan kyohi) means preferring not to interact with fans of the same person.
ガチ恋 (gachikoi)
Literally “serious love”: genuine romantic feelings toward an idol, streamer, or VTuber, beyond ordinary fan affection. Read the full guide: What does gachikoi mean?
ガチ恋距離 (gachikoi kyori)
“Gachikoi distance”: an extremely close face shot or intimate presentation that jokingly feels close enough to make viewers fall in love.
“Oshi” sounds warmer than simply saying “favorite.” Is it closer to “the person I support”?
That is a great way to understand it. 推し includes affection, recommendation, and active support. You can like many creators, but your oshi is someone you feel motivated to cheer for.
Words you will see in VTuber chat
草 (kusa)
“LOL.” A row of w characters looked like grass, so laughter became kusa, literally “grass.”
ｗ / www
Japanese internet laughter. One w can mean a small laugh; many ws suggest stronger laughter.
てぇてぇ (teetee)
A playful pronunciation of 尊い (tōtoi), “precious” or “sublime.” Fans say it when an interaction feels adorably precious.
助かる (tasukaru)
Literally “that helps” or “I am saved.” In chat it humorously means “thank you for providing exactly this moment,” as in くしゃみ助かる, “bless you for the sneeze.”
PON (pon)
A cute or funny mistake, technical slip, forgotten item, or moment of clumsiness. It is usually affectionate, not harsh criticism.
えらい (erai)
Literally “admirable” or “good job.” Fans may praise very ordinary actions—drinking water, waking up, or remembering a task—for comic encouragement.
8888
Applause. The number eight is read hachi; repeated eights represent pachi-pachi, the sound of clapping.
初見です (shoken desu)
“This is my first time here.” New viewers use it to introduce themselves in chat.
わかる (wakaru)
“I know what you mean” or “same.” In chat it signals agreement or shared feeling.
ナイスパ (naisupa)
Short for “nice superchat,” a reaction thanking or acknowledging someone’s Super Chat.
おつ○○ (otsu-…)
An end-of-stream greeting built from お疲れさま (otsukaresama). The ending is often customized to the VTuber’s name or theme.
鳩 / 鳩行為 (hato / hato kōi)
Carrying messages or information from one streamer’s chat to another, especially “X said this about you.” Many streamers prohibit it because it creates conflict or pressure.
指示厨 (shijichū)
A viewer who constantly gives unwanted instructions, especially during games. Advice is safest only when the streamer asks for it.
ROM専 (rom-sen)
A viewer who reads or watches without chatting. It comes from “read-only member.” Quiet viewers are still viewers.
Common stream formats
雑談 (zatsudan)
A free-talk or chatting stream. The VTuber talks with viewers rather than focusing on a game or planned performance.
歌枠 (utawaku)
A singing or karaoke stream. Waku literally means a scheduled slot or broadcast frame.
ゲーム配信 (gēmu haishin)
A game stream. The same creator may label it by game title rather than use this general term.
耐久配信 (taikyū haishin)
An endurance stream that continues until a goal is reached, such as clearing a game, reaching a subscriber milestone, or singing a set number of songs.
ゲリラ配信 (gerira haishin)
An unannounced or short-notice “guerrilla” stream.
凸待ち (totsumachi)
A call-in stream where the host waits for friends or guests to join. Totsu suggests suddenly entering or calling in; machi means waiting.
逆凸 (gyakutotsu)
A reverse call-in: instead of waiting for others to call, the host calls them.
マシュマロ (Marshmallow)
An anonymous message service widely used for questions and audience submissions. The word may refer to the service or to one submitted message.
コラボ (korabo)
A collaboration stream involving multiple creators.
オフコラボ (ofu-korabo)
An in-person collaboration where participants are physically together rather than joining remotely.
リレー (rirē)
A relay in which several creators stream one after another, often for debuts, anniversaries, or special projects.
お披露目 (ohiro-me)
A public unveiling, such as a new outfit, Live2D update, or 3D model debut.
Content and career terms
アーカイブ (ākaibu)
The saved recording of a livestream. An archive may remain public, become members-only, or be removed depending on rights and policy.
切り抜き (kirinuki)
An edited excerpt from a longer stream, often with subtitles or added context. Read the full guide: What does kirinuki mean?
切り抜き師 (kirinukishi)
An informal word for a person who creates clips. -shi here suggests a skilled practitioner.
卒業 (sotsugyō)
“Graduation”: ending activities under a VTuber identity or leaving the current group. Read the full guide: Why do VTubers graduate?
活動休止 (katsudō kyūshi)
A hiatus or temporary suspension of activities. Unlike graduation, it leaves open the possibility of returning.
契約解除 (keiyaku kaijo)
Contract termination or cancellation. It is not the same as graduation and usually indicates a different kind of official separation.
転生 (tensei)
Literally “reincarnation.” Fans may use it for a creator beginning again under a new identity. Do not speculate about or expose a creator’s private identity.
中の人 (naka no hito)
Literally “the person inside”: the performer behind a character or avatar. The phrase is understandable, but investigating private information can violate boundaries.
清楚 (seiso)
In ordinary Japanese, “clean, modest, and unadorned.” In VTuber culture it often means wholesome or innocent—and is frequently used as a joke. Read more: Seiso VTuber meaning.
Mini example conversations
Examples
・この切り抜きから推しを知りました。
Kono kirinuki kara oshi o shirimashita.
I discovered my oshi through this clip.・今日は推しの歌枠がある！
Kyō wa oshi no utawaku ga aru!
My oshi has a karaoke stream today!・この二人、てぇてぇ。
Kono futari, teetee.
These two are so precious together.・初見です。配信楽しみにしていました！
Shoken desu. Haishin tanoshimi ni shite imashita!
First time here. I was looking forward to the stream!・卒業配信まで応援します。
Sotsugyō haishin made ōen shimasu.
I will support them through the graduation stream.
How to use VTuber fan words respectfully
● Read each streamer’s chat rules before commenting.
● Do not carry messages between unrelated streams (鳩行為).
● Avoid spoilers and instructions unless advice is requested.
● Do not investigate or spread private information about the performer.
● Remember that “fan language” does not erase personal boundaries.
● For clips and fan works, check the creator’s or agency’s current guidelines.
There are a lot of words, but they make more sense now that they are grouped by “fan,” “chat,” and “stream.”
Exactly. You do not need to study this like a vocabulary test. The next time you see one of these words in chat, return to this dictionary and connect it to the situation. Context will do most of the memorizing for you.
VTuber slang FAQ
Is VTuber slang standard Japanese?
Some of it is standard Japanese, some is wider internet slang, and some is fandom-specific. A Japanese learner should always check the context and level of formality.
What is the most important VTuber fan word?
推し (oshi) is the best place to start because many related words—oshi-katsu, sai-oshi, hako-oshi, and oshi mark—grow from it.
Can I use “kusa” instead of “LOL”?
Yes in casual Japanese online spaces, but it can look overly internet-like in formal writing. One 草 or several ws are both common ways to show laughter.
What is the difference between a clip and kirinuki?
In VTuber culture they often refer to the same general thing, but kirinuki usually implies an edited excerpt from a longer source stream. Rules differ by creator and agency.
Where Does Your Word Belong?
45+ terms is a lot at once. Answer two questions to jump straight to the right section above.
e.g. kusa, PON, teetee
e.g. oshi, gachikoi, seiso
collabs, zatsudan, karaoke streams and more
e.g. graduation, kirinuki
※ Some words, like 推し (oshi), have spread throughout Japanese pop culture, while others stay specific to VTuber and livestream communities.
VTuber terms dictionary: summary
● Oshi words describe who and how you support.
● Chat slang such as kusa, teetee, PON, and tasukaru expresses reactions.
● Stream terms such as zatsudan, utawaku, totsumachi, and guerrilla describe formats.
● Career terms such as debut, hiatus, graduation, and termination describe different stages and should not be treated as interchangeable.
● Community rules matter more than showing off vocabulary.
Digital Daijisen entries for 推し and 推し活; cone VTuber glossary; official derivative-work and clip guidelines from hololive production and ANYCOLOR.
