I thought his nick was "Diddy Kong?" A huge boxing fan bar tender I know referred to him as that. I Assumed he (Berto) was a Nintendo fan. But maybe this guy was trying to insult him or something? Didn't seem like it.
Maybe he was saying he looks like Puff Daddy or P. Diddy if you prefer. It's surprising he has come this far without a name. He's been on HBO since he was in diapers man.
ET? He had BERTO written on his trunks, but only the E & T were in black, the B,R and O were in white color.