A girl who loves casual sex with strangers and can't control her sexual urges. Some people consider her a whore but really she's crazy and likes acting out. Once your with her you'll become addicted.
How was your friday night.

I met this girl and she was a dirty staci. I can't stop thinking about her.
by Anonymous713 June 17, 2020
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In order to perform a Dirty Stacy, you need at least 4 people in costume, preferably in animal attire with faces covered. The people participate in a sexual orgy. The first one who passes out from exhaustion or lack of oxygen from the mask gets pooped on by the remaining participants. The individual who receives the excrement is known as the receiver of the Dirty Stacy.
Sean, Jill, Kate, Matt, and Josh had a party the other night and Kate ended up with the Dirty Stacy. It took her two days to get rid of the smell.
by Paperworkninja March 04, 2017
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Tonguing her anus, usually after she has taken a laxative, while fingering her g-spot, usually as she's on all fours.
Dude, we hit up Taco bell and went back to my place. It was the best dirty staci I have ever given!
by DColey March 31, 2020
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