BM

1. n. a bowel movement; an act of defecation. (Mostly a euphemism used with children.)

□ If I don’t have a BM soon, I’m gonna die.

2. n. a disgusting and annoying person. (Also a term of address. A humorous way of calling someone a shit. Usually objectionable.)

□ Get out of here, you stupid BM!

□ The new guy has to be the world’s worst BM.