A fucker who's nuts dropped when they were 24. An absolute nonce of a human being and are the tool's of this earth. Often associated with douche bags who need to grow up.
"Hey John, i heard Jay's dating a 17 year old "
"Oh my god, that guys a total fucknut"
by umadbro14 January 27, 2023
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A person who is so dumb that words cannot describe how dense they are: therefore, the term "fucknut" was created. They also have a maximum of -50 brain cells, somehow.
People who support pedophilia and zoophilia are absolute fucknuts.
by Shadow_the_Gay October 30, 2023
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When you nut while you fuck. Basically when you’re doing the fucky fucky with someone and you nut while doing that. Pretty much :)
“Bro I did such a big fucknut in my brother last night- I mean how was your day?”
“Uhh… can we please call the police David-“
by soggynoodledaddy December 9, 2020
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Person 1: Hey dave I threw your computer in the bin
Dave: You fucknut
by Mclarenfan2 October 22, 2019
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