Similar to a prenup, where a contract is made before the sexual encounter to ensure zero emotional liability, zero stalking, zero kiss-and-tell and zero phone calls the morning after, or alternatively STD-treatment bill and abortion bill insurance.
Dips: I don't want to be any girl's first or last. That's just too much baggage.

Bhai: You're just scared! I'll tell you what, sign a prefuck. That way you can be sure she won't stalk you afterwards.
by Alan-a-Dale April 13, 2010
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You and a significant other arrange to meet before a date and engage in vigorous sex before you both get too drunk or something. Also is a great way to break the ice.
Guy 1 - Dude I am getting bombed at the bars tonight.
Guy 2 - Aren't you going with Jordan, what if you get whiskey dick?
Guy 1 - It's okay, we are going to Prefuck at her place.
by OSU JTG May 28, 2009
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When embarking on a long-distance relationship LDR and each party has gone past the stage of being crazy for one another but have yet to meet in person. Normally this would be called 'fucked' but because you've not had the chance to fuck yet, you're 'pre-fucked' or 'prefucked'. Which takes into consideration the waiting period of time before you get to actually fuck.
Steve, while chatting online with Sally: "I'm totally prefucked for you!"

*****

John: "Man, Chris is dissing us again because of that girl he's talking to online!"

Bill: "Yeah man, he's totally prefucked about her."

*****

Tina talking to Lisa: "Girl, why isn't Melissa hangin' out?! Is she prefucked with that guy she met on that dating site?"
by Jersey_in_Autumn November 22, 2011
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The total excitement before a strange fucking encounter with a person of the opposite sex
Hey Lola... your so excited to see Rich today.. you having prefuck bliss?
by Lucy & lola January 24, 2009
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that high/sober feeling that you get whenever the weed or edibles don't hit as hard as they usually do
adam: "yo did that toke hit yet?"
kyle: " nah bruh i'm prefucked right now"
adam: "ah shit thats the worst"
by shlongdicknibba April 27, 2020
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this is when you court a girl or otherwise persue until the point when you know she will have sex with you then you lose interest.
the other day tiffany was going to fuck me. i didnt even want to do it anymore when i knew i could. prefucking is the best.
by foreskinfury April 4, 2012
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