Give it a name and one embarrassing detail and get back a full track — beat, hook, delivered verses. Best used on someone who will hear it and laugh.
0/500
What it does
A diss track read out loud is a list of insults. A diss track over a beat, with a hook and a delivery that commits, is a completely different thing — which is why the format survives and why reading someone a roast off your phone never lands the same way.
This generates the whole thing: the bars, the beat, the hook, the vocal. You supply the target and the material. A minute later there is a song about your friend being consistently forty minutes late, with a chorus, and that is genuinely funnier than any generic insult generator could manage.
The trick is specificity. "Make it brutal" produces nothing memorable, because there is nothing in it about the person. One real detail — the thing they always say, the time they did that, the game they are inexplicably bad at — is worth more than any amount of asking for savagery.

How it works
A name, a detail, a beat. Two versions come back.
A nickname works better than a real name. One concrete habit or story beats a list of adjectives every time.
Boom bap, trap, drill, grime, even pop punk. The beat sets how seriously it takes itself, which is most of the joke.
Two versions per run, so pick the one with the better hook. Or write the bars yourself and let it handle the delivery.
What you get
Generic abuse is forgettable and generated generic abuse is worse. The line that gets a reaction is always the one that could only be about that person.
A name, one habit, the occasion, and how mean to be. Four short answers produce something much better than a paragraph of free writing.
A drill beat and a pop punk beat turn the same lines into two different jokes. It is the fastest dial to turn if the first version is not landing.
Friends who are in on it, rival teams, brands, yourself — all fine. Someone who did not agree to be in a song about them is not, and no beat makes that different.
Who uses it
The single most common use. A track about the person, played to the room, no cake required.
Four years of shared grievances, compressed into two verses and a hook.
The forfeit is having a song written about the loss. Considerably worse than paying up.
Escalation, but musical. Expect a reply track within the hour.
Beating someone is fine. Beating them and sending a song about it is better.
Underrated, and the only version nobody can be annoyed about.
FAQ

A name, one detail, a beat. Best served to someone who will laugh.