A person who is attracted to inanimate objects and will hump anything (not anyone) no matter what it is when they get the urge to.
Person 1: Why is Kevin humping the couch?
Person 2: He's Fucksexual.
by TheWhiteBowser July 26, 2016
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Fucksexual is being slut for saying Fuck
guy 1: moo
guy 2:so guy 2 is a fucking cow now
guy 3:oh your Fucksexual
by RAOIM July 19, 2021
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