A man that loves to engage in the act of anal sex.

A man that is also an asshole.
"Dude, did you get on Counterstrike today?"
"Yeah. That guy named System-Error was on."
"Him!? He's an ass jouster."
"Totally."
by Joey December 7, 2004
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one who jousts jobbies, a poop stabber, homosexual. Jobby is a UK slang for shit, jouster..a poker or prodder
that guy is such a jobby jouster
by wordworm2013 October 4, 2013
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A gay man who likes to ass bang
Look at those two butt jousters over there
by bling December 15, 2003
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Someone who used their rear end as a pincushion for dicks...or cocks. From "Fanny"=Ass, and jousting, a medieval sport using lances, which represent the male penis
You fanny jousters are as gay as man-on-man anal fisting
by Fuck1488 April 8, 2008
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Two gay men who dual by shooting hot gummy loads at each other with the intent of harming one another.
Sam and Walter, jizz jousters, both rushed to the hospital for eye injuries as a result of jizz jousting.
by Silence Kills December 13, 2008
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