bbm 

blackberry messaging.

My sick blackberry curve that i got from blovi. Blovi used his blackberry to get a bbm from Kevin.

bbm by PatrickO January 5, 2008

BBM 

B**ch Blow Me

guy 1: BBM!
girl 1: SCREW OFF YOU JERK.

BBM by fogul the dragon April 22, 2011

BBM 

Big Bowel Movement. When one has a larger than usual bowel movement.

Also Why Black Berry Messenger's abbreviation of BBM is poorly planned.

1.) I had a huge dinner last night and just had a BBM, someone should clear the toilet.

2.) Pull the car over, I need to take a BBM.

BBM by Uselessman81 August 5, 2010

BBM 

Big Black Man
Usually talking about a sexy, classy black man.

Look at that BBM over there. They sure don't make them like they used to.

BBM by lemony765 April 24, 2011

BBM 

BROKEBACK. FUCKING. MOUNTAIN.

BBM stands for 'Brokeback Mountain,' a movie about two male cowboys who fall in love. Starring Heath Ledger and Jake Gyllenhaal. Directed by Ang Lee.

Also referred to as 'The Gay Cowboy Movie,' by those too ignorant to realize it's so much more than that.

No one will go see BBM with me. Fucking homophobes.

BBM by Keshia Lee December 29, 2005

BBM 

A person failed to get a college diploma but insisting that he/she has the degree.

:Hey, Is Ferdie didn't finish his study abroad?
: Yes, he's BBM.

BBM by Reincarnated_Einstein November 5, 2021

BBM 

Boobs to Body Mass index. The size of a females boobs compared to the size of her body. Therefor a girl with small boobs can have a large BBM if the girl is small also.

Dude, that chick might be small, but she has a massive BBM.

BBM by yankeesrawsome May 22, 2011