pickle window

slang term for the mouth when telling someone to shut up. synonymous with pie hole, cum dumpster, etc.

When a man is having sex with a woman doggy style he reaches around and poops a little turd in his own hand, then he reaches up with the turd and smacks it on the woman's forehead and slides it down her face. It is said to resemble the streak made on a window if you take a pickle out of a burger and throw it on a window and watch it slide down.