My avatar is an Orz, from the "Star Control 2" game. They tended to speak in ways that hurt your head (it was on the 3DO and the aliens actually spoke out loud):
http://en.wikipedia.org/wiki/Orz_(Star_Control)
ADDED: I should mention that Trekgeezer's current quote, under his avatar, made me laugh Jack Daniels out of my nose the first time I saw it. Sometimes, the board can cause serious pain to those who are not prepared.