I've had some weird ones (my current one, for example, is a little bizarre) but for the most part I like them anyway. Two that I cringe when telling people about are:
bananabel (why lord why)
WorshipperNo1
WorshipperNo1 being a sort of private joke with myself, meant to be short for "Worshipper Number 1" but it ended up being awful because everyone either thought it was some oddly worded attempt to announce my status as an atheist or some slightly culty declaration of my love for god. The true reason for it was because at the time I'd just made up my own religion, and being the founder, had given myself the title of worshipper number 1 and I honestly don't think that makes it any better. I ended up trading it for "EpicBlob" which has the same origins and I actually still use...
EDIT: Can't believe I forgot about X BaBeL X!! How edgy of me