Top definition
Semen-stained jeans, usually worn by a man, though women have been known to be stained as well. Characterized by faint white splotches, and much more easily identifiable under a blacklight.
You can tell that Buzz is addicted to jerking it because of his splotchy protein jeans!
by B100 September 23, 2009
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2
Denim trousers exhibiting residue of ejaculate.
Don't sit under the blacklight, man! Your protein jeans are showing!
by rgthwebb September 24, 2009
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