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1 definition by Ptatters

 
1.
Lip cheese is the white crusty, goo-like stuff that accumulates in the corners of your mouth when you sleep/ and or talk alot. When people see you have lip cheese it is a major turn off, it probably makes them want to throw up all over everywhere. Its best to frequently check the corners of your mouth for lip cheese.
Dude, that chick i made put with last night had a massive amount of lip cheese, it tasted like garbage!
by Ptatters August 14, 2009