The action of playing fortnite and simultaneously wanking at the same time
Person A: What's your plan for saturday?
Person B: I'm gonna fortnut
Person A shoots Person B in the head
by TeriyakiSushi1 August 3, 2018
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Not to be confused with the Porno, a Fortnut is when one masturbates to the asses of Fortnite.
Joey: Jesus, The other day I walked in on Jack bustin a Fortnut. Why doesn't he just go to Pornhub?
by King K. Rool Jr. August 9, 2018
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The ability of playing fornite and busting a nut at the same time
Guess what i did yesterday. I had a fortnut session.
by BigGucxiSosa97 August 1, 2018
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“Where’s Jake?”

“He had to leave the party and go bust a fortnut.”
by Redheart147 July 24, 2018
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A Fortnite player, usually one who very much enjoys the game.
A Fortnut is someone who plays Fortnite and likes it enough that they could be described as "nutty for Fortnite"
Billy: "Y'know Gwen, Timmy sure has been playing a lot of Fortnite recently."
Gwen: "Yeah he's a real fortnut, I hear he's already tier 126 in the battle pass."
by Dracyan December 11, 2022
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When you bust a nut playing fortnite because your girlfriend is giving you head.
Yo my girl gave my the best fortnut ever
by Ali_P422 June 26, 2018
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