I once heard a professional juggler say it's much easier to juggle several of the same object, even if they're really dangerous things like knives or flaming torches, than a few objects that are different from each other. It makes sense, but at this juncture, I'm not sure where Gamzee might find three Nepetas to juggle.
The title cut off the letter-d at the end of "jugglated", but I kind of like it in its vaguely engrishy glory.