Be a hipster, name it after a concept.
The Internet
Manifest Destiny
Keynesian Economics
Heimlich Maneuver
Be a quantum physics nerd, name it this
Schrƶdinger
Be a gamer, name it after a game cat
Kitty (Dragon Age: Origins)
Big (Sonic Adventure 2)
Bubsy (Bubsy)
Cheetaman (Cheetamen)
Constable Neyla (Sly Cooper)
Evil (Earthworm Jim)
Felicia (DarkStalkers)
Katt (Breath of Fire)
Lynx (Chrono Chross)
Red XIII/Nanaki (Final Fantasy VII)
Okami (Close Enough)
Be a Internet geek, name it after a lolcat
Ceiling Cat
Basement Cat
Hover Cat
Monorail Cat
Be unoriginal, name it one of the names on this list
http://www.mcsweeneys.net/1999/10/27pets.html
Be a grammar nerd, name it an uncommon part of speech (adverb, verb, adjective)
Totally
Pitch
Follow
Jump
Antibody
Virulent
Quotidien
Artsy
Be practical, name it something you're going to say to it all the time, anyway
(whistle)
(snap)
Hey
Cat
Get down
Pusspuss
Stop it
Ow
Shh
Quiet
Be a smartass, name it an obvious dog name
Spot
Fido
Barkley
Spike