Usually found in bachelor houses or the rooms of teenagers. It is when a box(es) of pizza are on the floor usually empty but sometimes containing a piece that was not finished.
Girl- Glad i could come over.
Boy- yeah, here is my room.
Girl- EW! you have a pizza carpet. Bye!
A large round spot on a carpet resembling a pizza. Usually found while cleaning up the morning after a raging party. Most often the result of a really voluminous hork after after eating and having one too many.
Guy 1 “Dude, who ordered the pizza?”
Guy 2 “Look closer, it’s not a regular pizza, it’s a carpet pizza”
Guy 1 “Dude, that’s nasty!”
Guy 2 “Put a rug over it, no one will notice.”
When pizza has sat out so long, it starts to look more like carpet than pizza.