Paul Odyssey's definitions

shut your cheeks

Another form of "shut up," albeit a bit more friendly. An excellent response to banter, as it is a play on the phrase, "talking shit"; you are describing their mouth as an asshole that needs to close.

Friend - "Your girlfriend is old enough to be your mum."
You - "Shut your cheeks, bro."

by Paul Odyssey February 21, 2022