To send a message to someone VIA BlackBerry Messenger. It could be a message using text, or could include a voice note as well as a picture.
by mgmp February 18, 2009

Big Bowel Movement. When one has a larger than usual bowel movement.
Also Why Black Berry Messenger's abbreviation of BBM is poorly planned.
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.
2.) Pull the car over, I need to take a BBM.
by Uselessman81 August 5, 2010

by lemony765 April 24, 2011

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.
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.
by Keshia Lee December 29, 2005

by Reincarnated_Einstein November 5, 2021

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.
by yankeesrawsome May 22, 2011
