Stow it!

stow it

slang To stop talking. Often used as an imperative. Stow it, sis—I don't need to hear your opinion on everything I do! Mr. Riley, if you don't stow it this instant, I'm going to send you to the principal's office.
See also: stow
Farlex Dictionary of Idioms.

Stow it!

exclam. Shut up! Stow it! That is enough of your applesauce.
See also: stow
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • button it
  • button it!
  • don't get me wrong
  • come it
  • come it (with one)
  • don't give up the ship
  • don't go there
  • a sob story
  • don't @ me
  • don't beat a dead horse