Something that makes you turned on and want to masturbate.
Oh man did you see Sheila's dress last night, now that was fap fuel.
by TruFacesWillCome May 25, 2011
1 more definition
Top Definition
dirty talk, porn, sexting. a really hot girl, or boy.
talking dirty with you is such fapfuel
by fapfuel May 16, 2011

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