A Dempsey is a male or female that pisses after every drink of beer. They have thimble sized bladders and usually squat when they piss
Wow, sorry guys I have to take a Dempsey.
by Harry O' Nutz April 1, 2011
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A child-eating, porno-hungry, sex-addicted, beastiologist who performs open heart surgery in the nude. He has a very very large wang (if you look at it at a microscopic level). But everyone loves him cuz hes sexy and cool. Word.
"I awoke from surgery and there was a Dempsey standing above me eating a child while watching porn on a nearby television. I called Lassie to see if my heroic dog would save me, but this Dempsey ended up having sex with her. My life sucks ugh."
by tightmoanzz August 26, 2008
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- A big fat asshole who looks like a giant fucking dick with a turtle shell on his back and a dick in his ass.

- Is a dick. Enough said.
Guy 1: Big hairy scary gay Gary Dempsey the douchebear gave Drew Bisson a big fat load in his ass.

Guy 2: Yep. That sounds like Gaybear dempsey.
by BHSSucks2311 September 4, 2010
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Bad, horrible even. This is a term you use on someone when they do something so outright stupid that you cannot use words to describe what they’ve done
1: “So, what did you do again?”
2: “Told a guy that i would suck him off for a donut, it isn’t gay tho don’t worry”

1: “What’s that in your hand?”

2: “A donut what about it?”
1: “You’re pulling a Dempsey rn smh
by Ya Boy Skeezy October 5, 2020
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The act of having sex with and eating multiple under-aged dead animals, all of which are of the same gender, covered in taco sauce, on fire, and your siblings.
"I just had a dempsey and it was fun but now I have 3rd degree burns on my penis and no more brothers."
by gunafiveseven August 26, 2008
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"I couldn't put my garbage outside because there was a dempsey by my mailbox"
by colapowa August 26, 2008
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