A sexual act of penatration (vaginal or anal) involving an amputated limb.
I walked into the restroom at the club last night, and caught these two chicks stumping in one of the stalls.
by Madronin August 22, 2006
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Using the remaining stump of a amputated limb to have sex with someone.
John: Don't use that dildo...use my stump!

Heather: Oh I love you John....Give me a good stumping!!!
by The Real Shwa November 22, 2010
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The insertion of one's partially amputated limb into the sphincter of another person. It is only considered a homosexual activity when both participants are male, otherwise it is a form of pegging. synonym: Dirty Oscar.
Tom: "Ever since my girlfriend got her leg amputated, I've been totally into stumping. Is that gay?"
Scott: "Does your girlfriend have a penis?"
Tom: "Yes"
Scott: "Then yes, Tom, it is homosexual"
by lamesGee January 15, 2010
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Like humping—gay or straight—but sex with an especially thick penis or "log," with a girth well above the 5.5" average.
His log was as thick as her wrist and stuffed her hole tight when she was stumping him.

Him stumping me in the ass with that monster cock left me so sore I couldn't sit down for a week.
by TheCurmudgeon July 2, 2012
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Stumping : shitting into someone elses asshole. Optional : then they shit it back out.
Me and my wife did sum stumping last night , my shit was almost too soft to go into her asshole.
by Mr.Vomit666 January 27, 2011
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Someone who has a stubby dick
Look at his pants, he must be a Stump
by Cinghram97 November 2, 2016
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A girl who is physically attractive, yet is lacking in peronality. Attemping to hold a conversation with a tree stump would be equally interesting.
That chick is fine, but hot damn.. what a stump!
by Sam K. June 2, 2004
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