what or who is gebo?

Gebo is a form of ge-bo-nee which is derived from dwef-fo-nee (rhymes w/stephanie). What the heck does that mean? Well, if I go back in time, to about 1977 or 78, I can hear my big brother brother john, taunting me in a high pitched voice. He would take a name, and change it to a new name that rhymed. Sort of a mimicking baby-talk to tease. He did the same for my sister who was twid-o-wynn, real name, trissa lynn. She is now twid. The names stuck. The teasing and taunting were out of love of course. At least, I'd like ot think so.