pocket mouth

Pockets, we put just about anything and everything in them.. calling someone a pocket mouth is saying they'll put anything in their mouth.

Guy 1: "man! Jess' totally gonna give me head!"

Guy 2: "don't do it man. That girl's got a pocket mouth.She'll put anything in there.."

hot pocket mouth

Mouth burns from biting into a Hot Pocket.

I had a serious case of hot pocket mouth after biting into that hot pocket.