back when COD: World at War came out...back in like 2008 I guess that was, I was trying to come up with a PSN name to user when I played online. So I wanted to have a name that made people laugh every time the screen came up and said, "You were killed by _____".
So originally, my PSN name was actually, "HippoFangers" like hippo fingers but even weirder. I think I had recently watched salad fingers and hippos are funny I suppose.
Then from that, and my extreme love and obsession with electronic dance music, came the more refined, "TechnoPotamus" and once people on here started to know me by that name it just stuck.