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When a guy/girl becomes unkissable due to their chapped, dry and grated like appearance lips.
dry flappy skin hanging off is an unforgivebale offence and can be treated with the simple application of the chapped lips saviour carmex or the trusted vaseline.
Rodney- "Hey sexy, give us a kiss" (proceeded with a wink)

Jemimy- "Errr no thanks you might be hot but your Shreddie-Mouth suggests otherwise so don't come near me with your cheese grater lips!"
by Quagga Quimp October 25, 2010
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