When something sucks really bad. Reference to Ol Dirty Bastard who has a troubled past - prison, mental facility - then changed his name to Dirt McGirt.
by RMYA August 14, 2006
Martin: Yo, yesterday I was hangin' in the park when some dirtz dudes came along...
Michael: And today you came along an american keyboard?
Michael: And today you came along an american keyboard?
by PatrikRocker May 12, 2016