Masturbating before making any decision regarding females.
James: I can't tell if I should fuck my ex or not
Tom: Just fap on it, then you will know.
by Johng123 August 3, 2011
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When one is on the fence about an important decision, instead of "sitting on it" they "fap on it" (jerk it, rub one out, a good wank, etc.) then revisit the issue at hand with a much clearer mind and thought process. Usually pertains to issues involving bitches and hoes.

The term was coined in the famous rage comics on reddit.
Jim: Hmm I'm not sure if I should fuck my ex again. I know I'll fap on it.
* fapfapfapfapfap*
Jim: Nah fuck that bitch

Tom: Do I really need that new TV? Welp, time to fap on it.
*fapfapfapfapfapfap*
Tom: Fuck yes I need a new 60 inch plasma tv
by sergeant-assclown August 11, 2011
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To masturbate prior to making a decision involving women. "Fap" comes from the onomatopoeic representation of masturbation popularized on the internet via web forums.

When one faps on it, sexual tension is released through masturbation, resulting in a mind that is clear in thought and a rational decision can be made involving women, usually sexual decisions.
Bro 1: I'm not sure I want to drop $40 tonight on drinks with Jen at the bar. I wanna fuck her, but I don't know if it's worth spending dough on her.

Bro 2: Fap on it. Then you'll know what to do.
by ilikeitraw0 August 15, 2011
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the act of fapping before making a tough/thoughtful decsision.
i'm not sure if i should text derpina
better fap on it
by X41 August 2, 2011
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the sound one makes when masturbating himself to extascy
damn, im gonna have a fap session rite now with this porn
by SAN JOSE STATE April 28, 2003
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Is what you do when your parents arent home. If they are, that may be dangerous. It means masturbation in case you didn't know. Its also a funny way to say it.
(no parents in your house):
You: *fap fap fap*

(with parents in your house):
You: *fap fap fap*
Your mother: (opens door) Son i need that...
You: *fap* HOLY SHHI- (falls down the bed, grabs everything and does a tornado flip)
Your mother: (closes the door)
You: FFFFUUUUUU...
by Chullage February 2, 2009
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an onomatopoeia for the sound of jacking off or masturbation
I was walking past my brothers room and heard porn moans and fap fap.
by yayaluvshearts July 28, 2008
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