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2.
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.
dirty talk, porn, sexting. a really hot girl, or boy.
talking dirty with you is such fapfuel
by fapfuel May 16, 2011