Oh!! Batta ping!

The act of hitting someone with a blunt object in the kneecaps until they can no longer walk. The "batta ping!" part is the sound it or you will make when you smash into the bone. The "Oh" part is the pleasant sound of surprise your victim or buddy of the beating will make.

Stephanie: Yesterday Tommy jumped me and hit me repeatedly in the legs with a 6 foot long piece of white hot metal shrapnel.
Jimbo: Haha!! You got Oh!! Batta ping! in the legs you fucking cripple!!!!