What is Dirty Galligan?
1.
A sexual position involving having anal sex with a girl while shoving your fist in her mouth so she can't scream.
Hey, if you don't get your girlfriend to shut up, I'm going to give her a dirty galligan right here in this bar.
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Nickname for original lead singer of Van Halen, David Lee Roth.
Diamond Dave was replaced by Sammy Hagar after he quit the band.
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1.
The act of performing oral sex on someone, but then switching places with another individual who is at the time making out with that sam..