a shock video on the internet in which a man cuts off his own penis.

Briefly, "the realization that each random passerby is living a life as vivid and complex as your own." Originally from the Dictionary of Obscure Sorrows, which has a lot more beautiful neologism definitions like this you might enjoy.

A disturbing video where a man cuts off circulation to his testicles and penis, and begins to cut them off. In the end, he squeezes the actual testicle out of the scrotum. Not recommended for the weak minded.

A groop of guys that compete in torturous games that cut of their penis and nuts

completely and totally overrated. everyone will say it is horrid, vile and maybe even the worst shit on the internet, but it really isn't that bad. still, i wouldn't recommend you go there and watch it. its comparable to goatse.