Roast beef on a bun.
Also, an insult, compliment or child's name.
I want some big nigger beef buns.
Your are a big nigger beef bun.
Hey Big Nigger Beef Bun.
21👍 28👎
To go overboard, to freak out, to generally lose your composure.
"Holy shit! Brad Pitt just got stabbed in the face!"
"Don't beef your bun, man; he comes back in the sequel."
It means to do “you know what” what to another persons rear.
Why you always beefing buns on Saturday