Zip it up!

Zip it (up)!

Stop talking; shut up. A: "But Mom, I don't want to go!" B: "Zip it, Charlie! You're going to math camp, and that's final!" All right, everyone, zip it up! I don't want to hear another sound until the presentation is over.
See also: zip
Farlex Dictionary of Idioms.

Zip it up!

verb
See Zip up your lip!
See also: zip
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • Zip it (up)!
  • Zip (up) your lip(s)!
  • Zip up your lip!
  • Zip your lip!
  • Zip (up) your mouth(s)!
  • Zip your trap!
  • Zip your lip(s) up!
  • zip on
  • zip down
  • zip