bun 

To smoke ganja

Who's bunning that zut in here

bun by Bunna Bwoy July 23, 2003

bun 

Someone's butt, or rear end.

Check out Java's luscious buns.

bun by muonic March 8, 2010

bun house 

A government run building which deals with social security benefit claims, such as income support or housing benefit.

I had to go to the bun house this morning to sort out my housing benefit.

bun house by David Solomons April 28, 2008

Morning Bun 

The act of leaving a surprise poopie on the adjacent pillow of your one night stand, so that they may roll over onto it or wake up next to it, and you are gone.

Example 1: After very bad sex last night, Bryan decided to leave his one night stand a morning bun.

Example 2: Chelsea was rudely awaken after her face rolled over onto the the morning bun left on her pillow, by the guy she had met the previous night.

Morning Bun by ACTUALLYY September 1, 2011

hot dog in the bun 

basic sex move where the guy slides his boner between the woman's labias(the bun).HOLD THE ONIONS!

Being short on condoms i served up a nice friendly hot dog in the bun.

hot dog in the bun by daynal January 16, 2012

minor bun engine

A popular engine, used most commonly in a Geo Metro.

I'm having major problems with my minor bun engine in my Geo Metro.

minor bun engine by ntyravgjo August 25, 2010

bun in the oven 

state of being pregnant

I'd like to fuck that girl with a bun in the oven.

bun in the oven by Fred October 11, 2003