Having sex with a girl on her period.

When your done you look down at your cock and it looks like you just won an epic battle between you and your bloody mistress.
Sara told her man she wasn't sure if they should be having sex that night since she was on her period. He told her he's up to Slay The Dragon ;)
by The_Sex_Addict February 27, 2011
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When a man has sex with a rather large and unattractive woman who appears to have scales on her body due to stretch marks.
Christian: Hey Dave I heard you were slaying the dragon last night.

Dave: Well you gotta slay a couple of dragons before you get to the princess.
by Willup B February 1, 2011
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The act of having sex with a fat/ugly/non-attractive woman.
I got too drunk last night. I found some fatty boom-boom. One thing led to another; I decided to slay the Dragon.
by Chris. A. H. December 1, 2006
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v. The act of having sex with a fat chick
Guy 1: I heard Todd is getting lucky in the other room
Guy 2: It's no big deal man, he's just slaying the dragon.
by Dragonslayer69 June 29, 2012
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The act of an individual or entire team doing well in a Speech & Debate tournement.
"Slay The Dragon you guys! Do great today!"
by brendanp93 January 27, 2010
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When a firefighter goes to put out a fire and successfully extinguishes it.
by Chugchug January 30, 2018
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Engaging in sexual conduct with the ugliest girl (dragon) of a group of women. Pairing off almost naturally occurs for the beautiful woman but nobody is willing to claim the dragon. Generally though has more pervesion and more willing to put out over the more attractive specimens. Is known to lick your butthole, in which case you are told to marry her. Also known as taking one for the team.
Beve: What chicks are we boning tonight?
Parker: Ashley, Whitney, and Cierra
Dallen: I call Cierra!
Parker: Heck no man, your gonna slay the dragon tonight! You get Whitney haha.
Beve: Thats what I'm talkin about! She'll lick your butthole!
by Mike Hunts Softball Team June 26, 2011
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