Why was "tantrum" trending last week?
1756, from West Indies chigoe (1660s), possibly from Carib, or from or influenced by words from African languages (e.g. Wolof and Yoruba jiga "insect").
The six-legged larva of mites of the family Trombiculidae, parasitic on humans and other vertebrates and inflicting a bite that produces a wheal accompanied by intense itching. Also called harvest bug, harvest mite, jigger, red bug.