- to bewilder; confound; confuse.
Origin of flummox
- (tr) to perplex or bewilder
Word Origin and History for flummoxing
1837, cant word, origin uncertain, probably from some forgotten British dialect. Candidates cluster in Herefordshire, Gloucestershire, southern Cheshire and also in Sheffield. "The formation seems to be onomatopœic, expressive of the notion of throwing down roughly and untidily." Never let it be said that the OED editors lacked imagination. Related: Flummoxed.