I usually call Bloo Blooregard. I know it actually is hos name it just seems kind of funny calling him that instead of Bloo. It just doesn't sound the same without the "Q. Kazoo" part of it.
I can't imagine what the show would be like if every one called him blooregard, accept it would seem normal for herriman to say it.
Also, some time I call Coco "The crazy green haired chick"
he he...