Subban will be helping the Jackass crew test out goalie equipment. Of course, in typical Jackass fashion, the testing method will be PK taking aim at someone's uh, sensitive area, with his signature slap shot. The thought alone is enough to make anyone who's ever been hit with a puck, sensitive area or not, wince.
To do this with any success will require some impressive accuracy from Subban, but it is Jackass, where a stunt failing is often as entertaining as one being successful. As a goalie, I wouldn't be excited to be hit anywhere by PK's clapper. From the looks of the picture that went along with the tweet, they aren't exactly going to be wearing top of the line protective gear. My guess it that no matter where the puck ends up hitting the unlucky target, it's going to be both hilarious and extremely painful.
Jackass Forever is now playing in theatres. For hockey fans, simply seeing this stunt in particular seems worth the price of admission.