Found 2 items, similar to BM.
English → English (WordNet) Definition: BM BM n 1: solid excretory product evacuated from the bowels [syn: fecal matter , faecal matter, feces, faeces, stool, ordure, dejection] 2: a euphemism for defecation; “he had a bowel movement” [syn: bowel movement, movement]
English → English (gcide) Definition: BM BM \BM\ n. an abbreviation for bowel movement; -- used as an informal euphemism, especially in hospitals. [informal, abbrev.] [PJC]