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1.
A thin and sickly attempt at the growth of a mustache. Often worn by poor white or hispanic young men. Sometimes associated with date rapists.
"Kid Rock totally has a perve stache."
by Astrozombie00 September 22, 2006
 
2.
The first mustache on a young man, or the one and only mustache on a creeper.
"Look at that greasy Perve Stache on the man. He must be a pedofile!"
by The Guy that lives in a box September 29, 2009