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Verb: mouth off
Usage: informal
  1. Talk in a noisy, excited, or declamatory manner
    - rant, jabber, spout, rabbit on [informal], rave

Derived forms: mouthed off, mouthing off, mouths off

Type of: mouth, speak, talk, utter, verbalise [Brit], verbalize

Nearest

Moussorgsky
moustache
moustache cup
moustached
moustachio
mousy
mouth
mouth bow
mouth harp
mouth hole
mouth off
mouth organ
mouthbreeder
mouthful
mouthless
mouthlike
mouthpart
mouthpiece
mouth-to-mouth
mouth-to-mouth resuscitation
mouthwash