The act of release the ultimate black evil from one's anus.
"Dude, I ate way too much food. I gotta go Slay a Dragon."

"Man, I have to Slay a Dragon, that Taco Bell is hitting me the wrong way."

by thatguy669606 November 24, 2008
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A term used for calming down one's significant other if they are acting irrational, casting allegations or generally nagging to no end about anything
Sorry that I'm late fellas. I was home slaying the dragon as my girl saw Samantha's Facebook post on my wall earlier today!
by Thechriseco December 1, 2011
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A euphemism role-playing game enthusiasts and nerds use in place of masturbation.
Loser 1: Why weren't you playing World of Warcraft yesterday?

Loser 2: Sorry dude, I was slaying the dragon.
by jab4343 March 1, 2010
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I wank that is so great and fierce that it leaves you exhausted, also ejactulation is usual more than a metre in lenght
"Jesus mate I was slaying the dragon last nite, cudnt move for like 10 minutes, was completely out of it"

"Yeah, James said he wasnt up for fooling around cause he was slaying the dragon couple of minutes before i showed up"
by BadgerWarrior July 11, 2009
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Friend 1: how did your date go?
Friend 2: horrible. She stood me up so I went home and had to slay the dragon using my tears as lube
by Mr. JayBee June 26, 2012
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to jack off, to jerk thyself.
"Dude I was at the pool and there were so many hotties, I just couldn't contain it I had to step in the locker room and slay the dragon."
"Bro, I don't want to know that stuff you slaying the dragon, ..."
by Mcdizzle fa Rizzle January 18, 2007
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V. When one pees in each urinal and stall in a bathroom during one trip
Man, Chad is so good at slaying the dragon. I heard he's done it in every bathroom in the school.
by Gidzhead July 28, 2013
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