BM

BM means Best man
It's a common abbreviation

"What do you say, bud? Will you be my BM?"

BM

An acronym for brotherly moment, bro moment or broment. Often used by fans of shows such as Supernatural to describe two or more guys sharing a meaningful moment together.

The two sat down after their fight and had a BM

BM

to kill a knocked player in fortnight

"Dude just BMed me, your on your own now."
"Quick BM him, before he is revived."

bm

best man

will you be my bm? - jake peralta to charles boyle
nicholas miller, will you do me the honour of being my best man? *shows bm ring* - nick miller to schmidt

BM

Brewing Mischief

Angela and the other brew crew members are BM in the brew crew gc

BM

Abbreviation for "Best Man", as per S01E20 of Brooklyn Nine-nine.

Charles: Will you be my BM?
Jake: Yesss!

BM

BM stands for Black market as in a user or person who has gotten items that he does not allow to own

Hey this guy is a "BM" User