help me name my character

[Dominic]

writing a book. lead character is a former male porn star, known for the size of his tally whacker, who is now a third-rate private investigator. (Hey, I write what I know). Title of the book is Private Dick.

I'm having trouble coming up with his former porn name, though. It should have something to do with his, er, talent.

So give me your best shot, OOT!