here's the ones i use when i'm watching (from Florida) in order of most often
1. Perkolator -- when he does good things
2. Perk-a-leeze -- said like eddie murphy as the mom in some movie about her hefty son "herk-a-leeze, herk-a-leeze".
3. Perk is a BEAST -- when he does somethin' NASTY (big dunk, block etc.).
my 2 Cents
(IMO "perk" isn't really a nickname, just a truncation like calling Shaquille, Shaq).