look up any word, like wcw:
 
1.
A white female that has sexual relations with a black male.
White male says: "I'm not fucking with that girl, she is a dirty shirt".
by Kein259 July 04, 2010
17 0
 
2.
a gay guy
That guy has a dirty shirt
by John081983 November 24, 2008
6 3
 
3.
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 29, 2009
6 6
 
4.
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 06, 2006
2 13