What's the difference between i.e. and e.g.?
"servile parasite," 1826, apparently shortened from toad-eater "fawning flatterer" (1742), originally referring to the assistant of a charlatan, who ate a toad (believed to be poisonous) to enable his master to display his skill in expelling the poison (1620s). The verb is recorded from 1827. Related: Toadied; toadying.