flap one's gums

English

Pronunciation

• Audio (General Australian):

  (file)

Verb

flap one's gums (third-person singular simple present flaps one's gums, present participle flapping one's gums, simple past and past participle flapped one's gums)

1. (idiomatic, colloquial, US) To speak idly; to talk without effect.

   Synonym: flap one's lips

   What's that old coot flapping his gums about this time?