abreviation for baby mother, usually used when writing.
Man my BM about to make me mad.
by ladawnny October 24, 2011
BMW, a fine German automobile.
"Drop top BMs, I'm the man, girlfriend!" - Notorious B.I.G.
by The Lurker October 26, 2004
Acronym for Bad-Mannered.
Used in gaming, predominantly StarCraft II.
noob so bm stop pausing everytime before u leave
by omgwtfeverynameistaken September 26, 2011
"Baby mama"

A woman/girl who is the mother
A woman who you are not married to but visit b/c of the baby.

A woman who is maybe ghetto
My BM ghetto son
by Wassssupboylol July 16, 2010
a bitch move or bowel movement. context will decide the official definition.
Kayla: Wow that was a huge BM by Claire.
Chris: Do you mean bowel movement or bitch move? Your sentence was pretty hard to decipher.
Kayla: Bowel movement. Claire just took a huge dump.
Chris: But I though girls didn't poop?
by thecabbageninja September 26, 2011
"bowel movement" but in this case used as an adjective when being annoyed for fed up with a certain person.
Ellen has been such a BM lately, shes on my nerves.
by Seamus O'Connell April 30, 2008
Baby Momma
My BM trippin' today.
by SoLovely June 01, 2015

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