White male says: "I'm not fucking with that girl, she is a dirty shirt".
by Kein259 July 5, 2010
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girls who show up for no reason without warning and get in the way of macho time.
sputnik: yo are we getting crazy tonight?

wrangler: oh yeah buddy. right now.

enter dirty shirts

wrangler: crap.
by wrangles_lola September 30, 2009
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Any California male who smokes weed and eats fast food, which normally ends up on a clean shirt. The person then becomes The Dirty Shirt, and will deny he is dirty regardless of how much crap he has on himself. To prove his point he will continue to wear the soiled shirt for days on end.
I saw Kurt in the garage smoking with Matt, and yes, Kurt is The Dirty Shirt tonight.
by Baskethead August 14, 2007
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Usually a plummer who doesnt own a clean shirt. Also a plummer who shits behind a dumpster and wipes with his shirt.
1. - Who's behind the dumpster?

2. - Its just Dirty Shirt John.
by D.D.T. May 7, 2006
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Nothing will keep me from vacation. Dirty shirts are going to happen. So is my going on vacation.
Off I go on vacation like a dirty shirt!
by Llife August 30, 2017
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