iTantrum Share definition Flag The meltdown performance given by a toddler when deprived of a tablet or other smart device. "When the battery went flat in the middle of his Wiggles game, Calvin threw himself to the ground in his worst iTantrum ever." iTantrum by ThylacineZoo July 26, 2017 0 0 Get merch Get the iTantrum mug. Buy Now — $32.95 See more merch
