Having sex with 3 different women in a day separately, without washing off in between.
Guy 1: Hey man, what did you do this weekend?

Guy 2: I did a Dirty Hat Trick this weekend with Sandy, Stacy, and and Amber.

Guy 1: Dude! That's nasty but awesome!!! Hope they don't talk about it and find out!

Guy 2: Yeah, right? They all blew me, too. Haha!

Guy 1: Gnarly!
by Pineapple Dick June 1, 2014
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When one has vaginal intercourse with at least three women in a day without washing his penis.

(Is generally abbreviated to DDHT)
Friend #1: Last spring break I totally pulled off a DDHT!

Friend #2: Dude, what's a DDHT???

Friend #1: The Dirty Dick Hat Trick bro!
by TheChoctawCountyKid November 27, 2017
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