one who masturbates in public without being cought and leave no trace of evidence
tom: why is my chair so sticky

Jerry: damn fap ninja!
by smurf herder 69 September 20, 2011
A Fap Ninja is someone who can masturbate on several occasions without ever getting caught.
Person One: "Whoa bro, I didn't even get caught, again!"
Person Two: "Whoa man, you're a real Fap Ninja!"
by Shadowwolf97 October 29, 2014
A Fap Ninja is someone who can masturbate on several occasions without ever getting caught.
Person One: "Whoa bro, I didn't even get caught, again!"
Person Two: "Whoa man, you're a real Fap Ninja!"
by Shadowwolf97 October 29, 2014

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