QuackerJack usually calls him either "Megs" or "Sparky" (the latter of which, Megavolt detests being called, but QuackerJack does so teasingly/playfully), so yeah, they canonically have pet names for each other. 👀
@@a.j.medialover Ironically I only counted 2 times that Quackerjack would've legitimately died in this video The rest would cause severe, irreversible damage though lol