my friend made up his name after hearing a ridiculous song. his was DO_N_YO_MOM. he would get a lot of chuckles and a hater now and then. so, i came up with an idea. we all made new accounts so, in addition to my friends, we also had:
it was funny and the lobby would all laugh 'cause it looked funny while we were all in the same lobby. since none of my friends play any more, the humor isn't quite there and i just get a bunch of people that take it a bit too serious.
other than that, one of the best names i ever saw was
Your Own Stupidity
that way, when you died, the notification was, "Killed By Your Own Stupidity".
genius. wish i had thought of it.