A threesome involving two guys and and a young, innocent virgin 18 year old for a pornographic film.
I can't get off to anything less than Dirty Nancy
by wigglex4yeah November 30, 2011
Top Definition
When you drunkenly fuck a slut in every hole possible and then after she falls asleep you sleep walk over to your friends bed and piss on them. Generally applies to a hotel/vacation home.
Jim's bachelor party in Atlantic city was a fucking blast! Too bed Ryan pulled a dirty nancy on jeff and bach..
by Thebachelor September 24, 2013
In a hetero-cisgendered relationships, this would refer to anal sex -- sex without the fear of preg(Nancy).
Dude: Hey babe... I love you and everything... But would you want to do the Dirty Nancy tonight?
Lady: I guess I am in the mood... I do feel like a naughty girl.
Dude: You're the best!
via giphy
by lacinglaceyslace December 26, 2015

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