This is really just a high 5. The exception is that it can only done by emo kids. In order to qualify as a cry five, the wrist MUST be covered with an elastoplast, and it must be clearly visible for the top clap.
Extra points are awarded if the cuts are really deep and your hand actually flips backwards, so you have to plaster it back on again - Cry Five baby!
Jimmy: Don, this show was so emocore, I'm gonna go home and emobate!
Don-Trape: Cry Five :'o(