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mouth off

Other forms: mouthing off; mouths off; mouthed off

Definitions of mouth off
  1. verb
    talk in a noisy, excited, or declamatory manner
    synonyms: jabber, rabbit on, rant, rave, spout
    see moresee less
    type of:
    mouth, speak, talk, utter, verbalise, verbalize
    express in speech
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