A dirty wizard is the act of a male having anal sex with a female while she is shitting (as seen on macory.com). He then pulls his dick out and slaps her in the face japap with his dick while yelling "flippendo!" "expelliarmus!" or any other incantation mentioned in the Harry Potter series.
"Expelliarmus!"

...Haha, now you have shit on your face after that dirty wizard
by Mr. Scrotes April 23, 2010
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When one waves their dick around while saying "abracadabra" and then cums on the girl's face.
She won't talk to me since I gave her a dirty wizard.
by danzilla69 November 28, 2009
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A dirty wizard is when a male is having anal sex with a male or female, pulls his dick out, and right after he cums, disappears.
He told me would love me long time if I let him pound my ass, but he pulled a dirty wizard and I haven't heard from him since.
by Dinosaurasauraus January 27, 2011
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To flirt with a girl around a group of people, mainly friends or acquaintances, without them knowing. One who sneakily makes the magic happen
You dirty wizard! Getting with her the minute we looked away. You kissed her didn't you?
by SoHo Money October 5, 2010
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A way to refer to a dirty hipster without them realizing it.
Wow, Pitchfork festival was sure filled with some fixed-gear riding, PBR-swilling, over-sized glasses-wearing Dirty Wizards.
by Mo Dirty Wizard August 11, 2010
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A dirty wizard is when you have anal sex with a female or male and just as you're about to cum pull out and cum on their face while saying a spell from Harry Potter ie (Expelliarmus, Avada Kedavra) also please note you have to be dressed up as a wizard if not it's just dirty
Here babe want to dress up and do the dirty wizard tonight
by Pet5822 October 26, 2020
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A homeless man that lives near an Elementary School or a Middle School that knows bootleg card tricks.
Kid: Mommy, I want to go to that man over there playing with cards!

Mother: No Jimmy, you stay away from him, that's a Dirty Wizard.
by Swabby Jenkins June 29, 2011
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