TOP

Definition of mouth off phrasal verb from the Oxford Advanced Learner's Dictionary

mouth off

phrasal verb

jump to other results

mouth off (at/about something)

(informal) to talk or complain loudly about something

Join us

Join our community to access the latest language learning and assessment tips from Oxford University Press!

See mouth off in the Oxford Advanced American Dictionary

Other results

All matches

Idioms

Nearby words

noun

From the Topic

C2

Oxford Learner's Dictionaries Word of the Day