mine has two names:
baby jesus, and frank. the frank name was given by friends in grad school. the baby jesus name i got from some leather guy giving me head in the alley. he pulled out my dick and said "jesus!" and it evolved from there. sometimes baby jesus is resting quietly in his cradle. sometimes he's angry and wants attention.
i always thought guys who did this never evolved from frat/chav level BUT recently an admirer coined the name "junior". i kinda like that...so now it's stuck!
a straight guy in high school named it the mobster....then I said...."what? is it gonna bust a cap in your ass?"....he didn't like the name after that.