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Also see- dick tease.
Origin- Started with D T, short for dick tease. Then transpired into dirty thomas.
I ain't messing with that bitch, she's a total dirty thomas.
by ru-daddy January 02, 2011
When two guys are having anal sex, the partner taking it gets off, sticks their thing in their partner's mouth and spins like a pinwheel on top of them.
Dude, me and Thomas pulled off the best dirty Thomas I have ever seen.
by Aquatic Caribou April 22, 2009
where you stick it in a persons ear and pull it out and wipe it under the persons nose and you say TA DA! thats a dirty thomas.
Biach you just got dirty thomas ed!!
by sexy joe July 14, 2006