1.v. Of or pertaining to the act of anal sex

"Dude, I was totally ass jamming her last night..."
by McClarky February 1, 2009
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similar to pocket lint if you wear underwear unwashed too many days in a row the lint becomes moist like jam
Mate, your undies are so dirty if you sweat it up you will have ass jam
by thatsthatmattressman July 4, 2012
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In the MMO, Dark Age of Camelot, "ass jamming" describes a situation where two enemy groups are fighting eachother and a third group comes along and joins the battle.
"I dont ass jam unless i see someone out numbered, id never interfere with a 1 on 1"
by Loumy January 16, 2010
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When you press your bare ass against glass and it spreads, revealing the browneye. Spreading ass like you spread jam.
I bent over in the shower and ass jammed the glass. My girlfriend saw it and freaked out.
by Rambonanza February 19, 2009
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The spunk left clinginging to a gay mans sphincter after a heavy bum fun session, typically coloured by blood and poo
eoo ure drippin ass jam cecil?
by Mike Tidy April 17, 2004
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In an MMORPG when there is a group of idle players and another grp of players suddenly runs up and kills them unexpecatdly.
Man we assjammed those guys at that keep!
by Cyrus February 13, 2005
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When your underwear gets all bunched up in your ass on a hot day.
Man, I’ve got some serious ass jam going on today
by Lil DaveyPete January 18, 2022
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