BM

Either baby momma

Or
BMW.

Depends on the reference.

"Oh shit it's my BM callin.. dont make noise but keep sucking. U know she be trippin if I dont pick up.."

Or

"Check out that matte black BM riding by.. shit looks clean asf."

by Marv_Elous June 4, 2019

BM

Blonde Moment
Short moment of stupidity that is stereotypical by blondes.

Sorry, I just had a BM.

by Explosivo1269 May 13, 2016

BM

BM by itself means bad mannered(probably not what you expected)

In most battle royale games, people will use the phrase BM either when they are getting finished or if they were going to finish someone else.

by Gaming definitions February 21, 2019

BM

banky's mom

looks like BM just got here

by tr0llm4st3r152 May 21, 2011

BM

The term or abbreviation for something that is even more whack than whack itself.

BM > whack

That shit that was pulled the other night was real BM, real BM.

by Jorge Jr. January 15, 2007

BM

abbreviation for baby's mom

"yo, his bm is a beast, but i will still knuck her...he's my man now!!!! shit, that baby aint even his!'"

by yummy500 July 4, 2005

bms

gay term that some newb came up w/... P.S. he only says it to guys.

Guy1: You're tarded.
Guy2: BMS
Guy1: You're gay

by Shayner February 28, 2004