the build up of dirt and grime that will form round the lips during a heavy party session. it has been known to contain mostly saliva but also spunk, shit, snot, blood, smegma and in some cases fluids from an animal.

in extreme cases it can turn so sticky the lips will be glued together and flys will stick to it so watch out.

another common cause is talking the biggest load of shit.

its more commonly found amongst gay men who love to rim filthy asses.

remember always wash your lips!!
lenny : are you wearing a new shade of lipstick....?

penny : i dont wear lipstick

lenny : well what da fuck it that shit on your lips?!!?

Benny : eeeeeeeeeeewh theyre mouthskids dirty fuckin bitch!!!

Lenny : WHAT??!! YOU FUCKING BITCH!!

Jenny : im sorry!

benny & lenny then kick the mouthskids off and skull fuck jenny. she loved it.
by Benny Lenny Jenny July 13, 2010
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