Plus there is the "official" name, the shortened nickname that I customarily use, and with my current trickster, on occasion, when he is being particularly fractious - or catlike - some words that are not his name and cross the line into the "expletive deleted" zone

So here goes:

My first kitty (now at the RB) was officially named Dominick because with his tuxedo he called to mind a Dominican monk, and someone commented that he looked like a sleek dominatrix (gender notwithstanding.) But I called him Nicky or Nickythecat.

My current kitty is a silver gray tabby - ergo Dorian Gray - although I call him Dorry, Dorry-boy, whatever.

Both kitties were privileged to attain COTD status