My previous bike, a red ST1300 was called the Red Devil, referring to it's colour and temperament, but also to the Belgian Soccerteam's nickname.
My XT 1200 sneaked it's name into my brain while I was driving it for the first time. The connection? Well, it's gray, I change postions while driving under different circumstances and after a vibrating ride it gives me that happy ending, also..... Go read the book for more details.
But more important: you'll never drive that gray Tenere with the same feeling again.
My gen 1 was nick named the blue pig (guess the color) and the current gen 2 is appropriately named the gray whale.
Buddies riding BMW and KTM have their own (abusive) names for the Tenerasaurus since I ride and not spend time fixing issues.