Sorreh but my Gatr's nick is just way better =P (Fearligatr).
I don't have anything better so I'd list nicknames for teams I've made
Swamperv (Swampert)
Forrtress (Forretress)
Elec Freak (Rotom-H)
Fat **** (Blissey)
Skukraken (Gyarados, taken from what was supposed his original)
Tyranosaur (Tyranitar) / Cosmic (Jirachi) - Haven't decided on the last slot =/
Dumbass (Uxie)
SnappyBird (Swellow)
Fearligatr (Feraligatr)
Night Hawk (Absol)
GrassEffct (Sceptile)
BlazeFlare (Blaziken)
Sonic (Sandslash)
1 EyeFreak (lamest, Dusclops. Going to be replaced by Misdreavus, called Lil' Miss)
Purity (Gardevoir)
Foiyah Fox (Ninetales)
ClawCrab (Kingler, another lame one)
Wish Cash (Whiscash, kinda lol < Replaced soon too)
I also have InfernoApe (Infernape), Aura Might (Lucario), Willful (Azelf). I also just thought about an amazing Metagross nick: BlueBomber =D