The behind of a Bonobo as animal or, more commonly used, as human (see bonobo).
Guy 1: "Have you seen the ass of that bonobo?!"
Guy 2: "You mean the bonobo buns, don't you?"
Guy 1: "Yeah, my bad."
A guy who frequently wears his hairin a bun
That guy has a Man Bununder hishat. He’s a Man Bun Manny !
The wad of hair a woman gets on the back of her head after a long night of fucking. Created by the back and forth motion of gyrations as she lays on her back. Generally visible when she gets up to go to the bathroom to clean herself or go to the kitchen for a glass of water.
Chad: Kiersten, what's that rat's nest in your hair?
Steve: Nice fuck bun, Kiersten.
Kiersten: Shut up, Chad!
When you're super serious about something. When you are sure that something is gonna happen.
"I am totally dead buns about fighting after school"
"Are you dead buns about posting that embarrassing picture?"
seeds on the bun referring to hair on the vagina
"Karrie had NO seeds on the bun last night."
When you are waving your penis in your wife's face and she abruptly grabs it and tries to ram it up your ass.
If you don't stop waving that thing in my face I'm gunna finger bun it up your ass.