We don't have one yet, but my kids want us to get the 'deep crystal blue' color and call it "Gus's Blueberry" (a reference to the 'Psych' television show).
I think I am gonna go with more of a description for mine as a nickname! I'm gonna go with 'Rapid' because that is the first word I used to describe my 2.2 175 PSI Turbo Diesel after I picked it up on Saturday and took it for a blast to the Coast! Also in the gorgeous Crystal White Pearl colour! Impressed with it! (yippy)