fapfapfap 

An onomatopoeia relating to the sound of rythmic sexual thunder claps due to the violent collisions between a man and woman, or the quick faint rythmic souncs of male masturbatinon.

Rick stood stunned by the bathroom door when he heared a faint fapfapfap instead of running water.

fapfapfap by tester February 26, 2005

fapfapfap 

Originally the onomatopoetic rendition of male masturbation in Japanese manga (erotic comics), using the Roman letters. "Fapfapfap" has come to represent male masturbation in general, and by extension the slapping sounds of any anal intercourse, and male/female penile-vaginal intercourse as well.

-- What did you think of that new actress?

-- HOT! Fapfapfap.

-- Easy for you to say.

-- Give me some privacy and my dick will make the noise.

fapfapfap by al-in-chgo May 24, 2011

FAPFAPFAP 

A reference to a really hot interwebs chick who doesn't give you l33t pr0n, but you'd still masturbate@her. Often associated with FAP@U.

Me: Man, Jawnty's a prude, but I was all like FAPFAPFAP to her anyway.
Jawnt: omg u r t3t hawtnezz<3!212!

FAPFAPFAP by Finneh October 26, 2007

fapafap 

The act of fapping in a hurried manner, either due to excitement or time constraints.

- Oh god, im so horny, i need to fapafap!

- The 'rents are gonna be home any minute! gotta fapafap!

fapafap by Zoloir April 27, 2010