/ Thesaurus / B Synonyms of bowel movement Find synonyms for: Noun1. bowel movement, movement, bm, defecation, laxation, shittingusage: a euphemism for defecation; "he had a bowel movement"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language