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
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

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