"Hot Karl" is a slang term for sex which involves feces. Such variations of a "Hot Karl" are having a bowel movement in your partner's mouth, the female partner giving the male partner fellatio after he has had anal sex with her, or when a parter has a bowel movement on the other partners stomach (usually, the partner getting boweled on has Saran Wrap on his/her stomach).
My wife and I experimented with the Hot Karl, wow do I love the taste of my woman's shit.
by Lil J. June 22, 2003

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The act of pooing in a sock and beating poeple senclessly over the head with it.
"Yo this thug wasn't given me my props yo, so im gunna brake into his house and giv'em a hot Karl yo"
by Karl the poopo January 10, 2003

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the act of jizzing in a cup, microwaving it for 1 minute before throwing it in a chicks face... I don't know why people are misrepresenting the hot Karl but its rather upsetting.
Joe gave Jane a hot Karl leaving 3rd degree burns on her neck and face
by itshugeaskaround November 16, 2012

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Poop in a sock warmed up and slapped on somebody while they are sleeping.
"Want to hot karl Jesse with me tonight?!"
by V Dempst May 16, 2008

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When you getting a peice of cling wrap and cutting a whole in it for the lucky persons mouth. Then place the cling wrap over her face and release your feaces onto the cling wrap so that the girl can feel the warmth of the feaces through the cling wrap without coming into contact with the feaces
After the party this kinky girl let me hot karl.

After my roomate fell asleep me and my friends all hotkarled him and he threw up.
by eagle 1 October 28, 2007

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Having anal marmalade ooze into your mouth
After receiving a hot karl, food tastes better
by karl March 17, 2003

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Sex act involving shiting on seran wrap into someone's mouth then making them eat the shit.
"He hot karled me." -Girl 1
"Thats disgusting." -Girl 2
by vanillawonder June 05, 2009

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