Definitions by Marv_Elous

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."

BM by Marv_Elous June 4, 2019