The act of stabbing someone with a shank. Comes from the word shank which is a crude knife usually made in prison, a homemade knife-like weapon usually made from a spoon.
The act of holding a cardboard shark fin between your butt cheeks and being crowd surfed.
1- We're playing beer pong at my place tonight, what are you doing?
2- We're Party Sharking at my house.
1- Oh, screw beer pong then, I'll be over at 10 with my cardboard shark fin decorated with assorted arts and crafts.