I played with a player named "DonkPounder" who didn't realize why his name was so hilarious to the other 8 players. There were certainly funnier ones earlier in the thread, but this is one of my favorites because he just didn't get it.
also saw "Johnny Hildo" a few times on a site. I played him a few times HU and I just had to type in ..."Hi Im Larry Pagina" - for you early 90s SNL fans...he never responded.