a closed mouth gathers no feet

a closed mouth gathers no feet

If you say nothing at all, then you can't say anything embarrassing or inappropriate. A play on the idiom "put (one's) foot in (one's) mouth" (to say something stupid). A: "Oh my god, I can't believe I said that. Why are you being so quiet?" B: "Because a closed mouth gathers no feet!" Knowing that I would inevitably say something ridiculous, I kept my mouth shut—a closed mouth gathers no feet, after all.
See also: closed, feet, gather, mouth, no
Farlex Dictionary of Idioms.
See also:
  • a fly will not get into a closed mouth
  • say
  • (I) can't say as I do(, can't say as I don't)
  • can't do anything with
  • can't do anything with (someone or something)
  • if you can't beat 'em
  • you can run, but you can't hide
  • you can't run with the hare and hunt with the hounds
  • have (one's) bread buttered on both sides
  • have your bread buttered on both sides