to masturbate, jerk off, hug your horn, etc. etc.
Last night i was talking to this hot chick and fwapping the whole time!

I wonder if asexual people enjoy fwapping.
by Mastero'disguise June 15, 2009
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When you are wrapping a birthday present and you accidentally cum all over the paper
1) happy birthday joey
2)awh thanks
2)wait what's this white stuff
1)oh I maybe have done a bit of fwapping
by Allah Au Ahkbat August 17, 2015
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1. Describes almost accuratly the sound that wanking off makes.
2. the motion your arm makes when wanking off.
by B to the R July 4, 2003
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Fwap is a slang term for male masturbation. The origin of the word is believed to be onomatopoeic, though may be an acronym (or equally likely, a backronym) for Furiously Wanking At Porn. It is in common usage amongst the b3ta web community.
A; Where's person c
B; Oh he went to his room
A; Oh fwaping again no doubt
by arseaboutface December 3, 2006
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The act of slapping woman/man with a slightly erect cock.
"Hey Sue, you're not done with my BJ. I still need to fwap you across the cheek."
by joelnjessica October 30, 2013
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The act of pulling out your pecker and letting it collide with any surface whilst emitting a mild thumping noise
That sumbitch over there has a perfect forehead to fwap my schlong on. Do you think she would like it?
by schlong Chong August 20, 2018
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The act of hitting someone in the face with your penis. Derived from the sound it makes.
Woman: I won't be able to make it to your party tonight.
Man: *FWAP*
Woman:I do belive you hit me with your penis.
Man: Yes, I do belive I did.
by Ninja Fight September 27, 2006
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