What is Sweeny?
When a male gets hit so hard in the testicles by someone else's hand that they are in pain for next few days.
Man 1: *Slaps man 2*
Man 2: *Delivers sweeny to man 1*
Man 1: *dies*
Man 2: "rofl pwned!:
See sweeny, sacking, rofl, lol, testicles, balls