Wincest is when the fans of the television show Supernatural get on their fanfiction sites and write about the Winchester brothers having an incestuous sexual relationship with each other.
I disagree with Wincest. I mean come on, they are brothers, that's just wrong.
by JennHart666 November 22, 2018
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That thing where you have sex with your sibling who is way out of your league
Netflix & Chill with my sister Cersei #Wincest
by DutchCheeseHead May 9, 2016
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When you marry two half empty or more windex bottles to create a single more full more bottle of Windex
Megan WIncested the cleaning supplies so now we can give Dad a full bottle and his windows a thorough cleaning.

Jeanie can you Wincest those mostly empty bottles before that new hire gets here? I don't want him to think were cheap on supplies on his first day at the car wash.
by Torbert July 6, 2018
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Having sex with your relatives until your heirs control the lands surrounding your greatest rival
I'm going to wincest my way into controlling the Spanish crown
by A totally real historian September 4, 2019
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Something that's only wrong when it's not hot.
Ben 10: Alien Force could have such a wincest.

If you've seen it, you understand.
by Wenzel32 July 8, 2011
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