To speak ceaselessly or without end.
mouth the words
To speak insincerely.
open one's mouth
to speak
put the bad mouth on
To speak ill of; to vilify.
get wind in one's jaws
To have too much to say; talk too much; run at the mouth; to speak one…
eat the mic
To speak or sing with one's mouth close to, or in contact with, a micr…
flap one's gums
To speak idly; to talk without effect.