put a sock in it

/P UH1 T AH0 S AA0 K IH0 N IH0 T/
verb
  1. 1

    To stop talking; to be quiet; to shut one's mouth.

    โ€œHe went on and on until I finally told him to put a sock in it.โ€

Source: https://en.wiktionary.org/wiki/put%20a%20sock%20in%20it