Verb - To "fap" or "fapping".
The act of loudly thumping one's flaccid
penis against one's thigh to produce a loud slapping, or "fapping" noise. You can fap against other things, like someone's face or butt cheek, or if you get really
good, the back of the hand that you're actually fapping with at the same
time. Foreskinless
people probably can'
t generate the same noise.
Also, there is the "Upward Aggressive Fap", which is literally what the name would suggest. Aggressively ping your dick up against your pubic region, causing impressive acoustics, red marks to body and knob, and a painful stinging sensation.