dirty thirty

A sexual act performed by one girl, thirty guys and a merry-go-round. To do this, the girl kneels on the edge of the merry-go-round and the merry-go-round is given a swift spin. As the merry-go-round spins, the girl then gives head to each male in the circle, creating a seemingly endless circle of blow jobs.
Jimmy: Hey, did you get the dirty thirty?
Leo: No, I can't drink, there are exams this week.
Jimmy: No, I mean the dirty thirty from Nafer.
by sweetlou69 April 24, 2010
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dirty thirty

Noun, South Side Chicago: 1. A $30.00 eighth of cheap weed, invariably containing many seeds and stems; 2. Nick Swisher, player for the Chicago White Sox, who is in possession of both the fire and the passion.
"You pick up some dank tonight?"

"Nah, just a dirty thirty. It's straight, though."

--

"Fuck yeah! Dirty 30 just doubled to left!"

by Red Line Mike May 15, 2008
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dirty thirty

When a Penis is 30 percent erect.
Ron: That fat bitch has a peeping thong!
Steve: Yeah but it's kinda hot. I got a dirty thirty
by item535 June 09, 2005
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dirty thirty

When you and a friend split a 30-rack of any beer, and split a white castle crave case 30-pack.
Don't do it the next morning I threw up pink balls?!?!?!
by cam_fash March 08, 2005
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Dirty Thirty

When a woman reaches the age of 30 and becomes an insatiable nymphomaniac.
Susie hit her Dirty Thirty, and now there's no stopping her!
by coryn_wants June 22, 2011
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Dirty Thirty

A thirty milligram oxycodone pill that has been pressed with unknown chemicals. Often cheaper than oxy’s from a script as you can tell they’re not from an industrial press.
Aye you got those dirty thirty’s?
I got some dirty thirty’s for the low.
by Bigballer69123 October 05, 2020
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Dirty Thirties

The age at which single women without children realise that their biological clock is ticking, As a consequence they may lower their standards and increase their willingness to perform sexual acts as a matter of desperation in order to find a mate/sexual partner. They may also attempt to hook up with younger males as an attempt to elongate their youth.

The expression almost always refers to women, as men are thought to always be in this state.
"Lets go to club x and pull some dirty thirties..."
by MacTheKinife February 24, 2010
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