Chat room terms explained: the words you will see in rooms
A plain-English glossary of chat room terms, from lurk, mod and DM to AFK, ban and mute, plus what each one means when you join a room for the first time.
Chat room terms are the small words every room assumes you already know: lurk, mod, DM, AFK, ban, mute, host, topic. Most of them mean exactly what they sound like. A mod is the person keeping order, to lurk is to read without writing, and a ban is a removal you cannot undo from your side. Below I explain each one in plain English, in the order you will meet them, and I point out the few that mean something slightly different depending on the app. I built Hashti, so I will use rooms there as the example, but nothing here is specific to one app.
The basics: what a room actually is
Room. A shared conversation space with a name and, usually, a topic. Everyone inside sees the same messages or hears the same voices. A room can be text, voice, or both.
Public room. Anyone on the app can find it and walk in. Think of a cafe with the door open.
Private chat. A conversation between two people, or a small invited group, that nobody else can see or join. People often call this a DM, which comes next.
Topic. The one line that says what the room is for. "Persian music", "learning Spanish", "late night coding". A good topic saves everyone time, and a room that drifts far from its topic is usually a sign of weak moderation.
Host. The person who opened the room. The host usually decides who speaks and who is removed. On Hashti, only verified accounts can host a room. That is a rule I chose on purpose, and I explain why further down.
Member, listener, speaker. In voice rooms, people are often split into those who can talk and those who can only hear. Joining as a listener is not rude. It is how most people start.
The terms about how you take part
Lurk. To read or listen without saying anything. Lurking is normal and nobody minds. If you are new, lurk for five minutes. You will learn the tone of the room faster than any rule list can teach you.
Lurker. Someone who does that. It is not an insult.
DM. Direct message, a private message to one person. Worth knowing: in many apps, strangers can DM you by default. On Hashti, unverified accounts cannot message strangers at all, which cuts out a lot of the junk.
Ping. A notification aimed at you. "Ping me when it starts" means "send me an alert".
Mention or tag. Writing someone's name or handle so they get notified. It is how you get one person's attention in a busy room.
AFK. Away from keyboard. Someone who says "brb" or "afk" is stepping away. In a voice room, it is polite to say so rather than just go silent.
BRB. Be right back. Same idea, shorter absence.
OP. Original poster. The person who started a thread or asked the question. You will see it more on forum-style sites than in live rooms, but it travels.
IRL. In real life. "I am in Los Angeles IRL" means "that is where I actually live".
TL;DR. Too long, did not read. A short summary of something long. People add it themselves, or ask for it.
Off-topic. A message that does not fit the room's subject. Occasional off-topic chat is fine. A steady stream of it is a reason for a mod to step in.
The terms about order and safety
These are the ones worth understanding properly, because they decide what the room feels like.
Mod, or moderator. A person with the power to keep order: delete messages, mute people, remove people. A room with an active mod feels calm. A room with none feels like a street at 2am.
Mute. Stopping someone from talking, either in the whole room (a mod does this) or just for you (you do this). Muting for yourself is private. The other person never knows.
Kick. Removing someone from a room right now. They can usually walk back in.
Ban. Removing someone and blocking them from coming back. A ban can be from one room or from the whole app.
Block. You stopping one person from contacting you. It is your tool, not the mod's. If someone is bothering you in private, block first, think later.
Report. Telling the app, rather than the room's mod, that someone broke the rules. Reports are what lets an app act across all its rooms. On Hashti, twelve verified reports closes an account permanently. I set that number high enough to stop one angry person taking revenge, and low enough that a repeat offender does not last.
Spam. Repeated, unwanted messages, usually ads or links. If a stranger's first message to you is a link, assume spam.
Troll. Someone who posts to provoke a reaction rather than to talk. The usual advice is true: do not feed them. Mute, report, move on.
Flood. Posting many messages very quickly to drown out the conversation.
Catfish. Someone pretending to be a person they are not. This is the big reason identity checks exist.
Verified. The app has confirmed the account belongs to a real person, to some standard. The standard matters, and it differs between apps. Be careful with any app that says "verified" and never tells you how. On Hashti, you are checked once against a government document. The photo is deleted afterwards, and a fingerprint of the document stays, so the same document cannot open a second account. That is the whole system, and I would rather you know exactly how it works than trust a badge.
The terms about the app itself
Walkie-talkie. A push-to-talk voice mode: hold a button, speak, release. Hashti has one alongside rooms, private chats and calls.
Live translation. Messages or speech translated as people talk, so two people with no shared language can still follow each other. On Hashti it covers 29 languages and is part of Hashti Plus, which is $4.99 a month or $39.99 a year. Everything else in the app is free. You can read more on the live translation page.
Interface language. The language the app's own buttons and menus are in, which is separate from the language people speak in rooms. Hashti's interface is English today. A Farsi one is being built.
Terms of service, or ToS. The legal document you agree to when you sign up. Boring, but it is where the real rules live: what is banned, how the app can remove you, what it does with your data. It is the other meaning of "chat room terms", and it is the one most people skip. Skim the sections on removal and on privacy. Those two tell you more than the rest combined.
18+. The minimum age. Hashti is for adults only, and I do not build anything aimed at younger people. If an app does not state its age rule clearly, treat that as a warning.
Words that mean different things in different apps
A few terms shift under you, and this is where beginners get caught.
"Private" sometimes means invite-only, and sometimes means "not listed, but anyone with the link can join". Check which one before you say anything you would not want repeated.
"Mod" in one app can mean an official employee. In another it is a regular user the host picked. The word is the same, the power and the accountability are not.
"Ban" can be reversible after a time, or permanent. Apps rarely say in the button text.
"Verified" ranges from "confirmed an email address" to "checked a government document". These are very far apart.
How to read a room in your first five minutes
You do not need to memorize a glossary. You need to look for four things.
First, read the topic and the last twenty messages. Does the conversation match the topic?
Second, look for the mod. Can you tell who is in charge? Is anyone deleting junk?
Third, see how newcomers are treated. If someone says hello and gets ignored or mocked, leave.
Fourth, check that you can leave and block with one tap. If you cannot, the app has told you what it thinks of your safety.
If you want a place to practice these, the public rooms on Hashti are a decent start, and the safety page lays out what is and is not moderated. I will say plainly that Hashti is newer and smaller than the big apps. Fewer rooms means fewer choices, and no app is a substitute for your own judgment.
A short cheat sheet
If you only remember a handful: lurk before you talk, mute and block are yours to use any time, a report goes to the app and a ban is permanent, and "verified" means whatever the app says it means, so ask.
That is the whole vocabulary. Once these words are familiar, rooms stop feeling like a club with a secret handshake and start feeling like what they are: a room, with people in it, and a door you can walk out of whenever you want.
Hashti is free, and it is 18+. Hashti Plus — live translation, writing help and catch-ups — is $4.99 a month or $39.99 a year, and nothing else costs anything. How rooms work is on the rooms page, and how reports and the ID check work is on the safety page.