look up any word, like bae:

1 definition by bad doc

 
1.
BnM
When you shit in your hand and then Fist a girl in the ass.
"I was tappin some skanky ass last night and then gave her a BnM"

"even after giving that skank the minivan, she was still begging for a BnM."
by bad doc August 24, 2008
29 31