I used to have a lot more, but they seemed to have died down. Most of them now revolve around my primary nickname:
Peteus, which is derived from Peter, that being my real name
From that, the further nicknames:
Penis, and Foetus have sprung forth for sounding similar to 'Peteus'. I quite like them, especially when people can call out Penis at the top of their lungs, and I'll respond, much to the displeasure of any surrounding adults
Alcar...