LOL... Good luck. The ISP I signed up for (way back when) wanted a screen name and suggested I use things like my initials or a childhood nickname. I did that. I used both. Now the nickname I had as a child was ONLY used in the family and to this day, nobody esp. my parent can tell me why they used to call me that. That's all I will say.

ADDITION:
OK, I thought about it. I guess since I brought it up I ought to be man enough to stand up and not be a coward. We are amongst friends here, right?
Well my immediate family and one Aunt used to call me Boobies. Like I said, I don't know why and it seems that nobody can recall why they used it. So my whole screen name was mwsboobies. It was available. Imagine that. But also like I said, when I was out in the internet public... you can imagine the questions and comments I got.