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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.
"Did you get my BBM?"
by mgmp October 14, 2008
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blackberry messaging.
My sick blackberry curve that i got from blovi. Blovi used his blackberry to get a bbm from Kevin.
by PatrickO December 12, 2007
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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.
by lemony765 April 05, 2011
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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.
by Uselessman81 August 04, 2010
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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.
by Keshia Lee December 29, 2005
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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.
by yankeesrawsome April 18, 2011
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