Top Definition
during the act of anal sex, usually forced, the male withdraws and ejaculates on the small of his victim's back then puts his or her removed pubic hair on the semen in a fluffy ball, sticking as it dries. this is usually done while slowly singing "here comes Peter Cottontail..."
"Here comes Peter Cottontail..."
"Oh god, Alex! Please just stop!"
by Taylor, Michael, and Philip February 29, 2008

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Verb - The act of stretching a woman's anal cavity to the point where you can drop your balls inside and have her anal cavity appear to suck them in and then close with your balls cozy inside.
I'm going to peter-cottontail my bitch of a girlfriend tonight!
by Gonz!!! April 23, 2009

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the act of inserting the maile genitalia in multiple orifices of the female species. ie alternating insertion into the vagina and the anus
I took that biotch home last night and went peter cotton tail on her...I was jus jumpin from hole to hole.
by Flaxx Eed August 28, 2009

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When two men are having anal sex and another stands behind them and ejaculates on the back of ones head resembling a cottontail
Two men lying naked on a bed.

Tim: Dudeson, what happened last night?
Cameron: Brosky did we...?
Tim and cameron: nah fuck that!

third man comes out of the closet.

Josh: that was one great peter cottontail!
by Gay4776891234 June 25, 2010

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An unwashed, glue-stained johnson, that is, a member of the male genetalia.
Dear God, its been weeks since I washed. I've got peter cottontail.
by Maverick461 July 04, 2006

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