Sorry I couldn't resist posting to this....
We ALWAYS get our name mis-pronounced!! Its either oop-silon or UP-silon...even though like BrianMUDU said, we prefer it to be yoop-silon.
Slightly-amusing story...
I started calling a couple of my Phi Mu friends Feeee Mu's until they started pronouncing Upsilon right. That got things cleared up REAL fast.
And then our first house rule for our new house is that any visitor has to pronounce the name of the fraternity correctly to get in! (Actually, that was supposed to be just a joke, but it WAS voted into the chapter by-laws the same night we banned capri pants at any DU function).