To use the hand, especially the fingers to cup, tickle, and violate the genital region of another person, especially the testicles.
Skurping is not intended for sexual enjoyment or pain (it is not a punch or hit), but to demostrate dominance over the person being skurped; it is also meant to demoralize the one being skurped. Skurping can also be extended to any action that dominates another, for instance an insult can be called a "verbal
skurp", etc. During a skurp the one
skurping should usually yell "Skuuuuurrp!" It can be used as a verb or a noun.