Bun 

People in montreal often use the word Bun for smoking weed. Bunning=smoking weed.

"We were bunning huge bats all night long"

"roll up a joint so we can bun already"

Bun by Urban Dictionary October 31, 2004

bun 

Like ugly or nasty
Another word is butterz

That boy is bare bun!

bun by Cocoablush March 29, 2009

bun 

n. A person (male or female) you're seeing/dating and have an affectionate relationship with. Not a one nighter or fuck buddy. Someone you don't mind hugging or kissing in public. Sometimes (in DC) used inter-changeably with "boo".
v. To meet up with the aforementioned person and do warm fuzzy couple things, such as watch a movie and/or cuddle. To bun.

N. Homie#1 - Yo, dawg, who was that girl I saw u with at the movies?
Homie#2 - Pssshh. You don't know? That was my bun.

V. Homie#1 - Ay, dawg, you hanging out tonight?
Homie#2 - Nah. I'm bunnin' with my girl tonight.

bun by Jane Doe January 5, 2005

Bun 

Ugly,Disgusting

girl 1-eerrggh that boy is bun
girl 2 - your bun

Bun by ILOVEHARRYPOTTER!!!! February 3, 2012

Bun 

Ignore, forget about, to reject, turn away from.

(London street slang)

1. "Let's take the tube."
"Bun the tube, I want to walk"

Bun by KnightRider99 March 19, 2013

bun 

1)A West Indian pronunciation of the word burn.
2)In Jamaican dialect, to give someone bun means to cheat on them.
3)see bun fi bun

1) The eediat man bun down him house!
2) I heard John Brown's wife giving hime bun!

bun by ole daag July 21, 2006

Bun 

a. A very cute boy or girl(n.)
b. To express close relations, the gangsta way to say "cuddle" (v.)

a. Ooh he sexy. He a certified bun.
b. Hey ma, u real sexy. im tryna bun u up.
c. Keyonna was gonna fight Trina cuz she was bunned up wit her man.

Bun by Lil Shawtie2Sweet July 7, 2006