Kneecapping

[Julene]

The act of permanently destroying someone’s kneecaps. Often done with a [firearm] (as popularised in film and television), a baseball bat or lead pipe or other blunt instrument, or a power drill (often used in conjunction with a countersunk drill bit and popular with the IRA).

[Becky]

(v) ne-kah-PING:

SHOOTING A [BULLET] INTO [THE KNEE]

OR

[PLAYING FOOTSIE] WITH KNEES

[Dave Paprocki]

What the Irish [IRA] and [PIRA] did when other drug dealers got in their way, theyd take a pistol and shoot him right in the back of [the knee]. This would shatter the knee, thus crippling the victim for life.