Different guy, not sure of the actors name but he was playing a spoof of that sleazy kike that did the "Girls Gone Wild" tapes and apparently was following women around in beach towns harassing them to get them to show their tits.

So the writer or directors of the movie, probably jews themselves but filled with the spirit of Bobby Fischer, basically thought it would be really funny if one of the fish performed a botched circumcision on him.

It was in 3d too so the piranha vomited his dismembered penis into the audience.