One with an appetite for anything, despite already having everything.
In psychology there’s this fascinating of malady… it’s called polydipsia. Polydipsia – a wonderful word… It’s Greek for “many thirsts.” Bottomless. Unquenchable. Insatiable thirst.
People with polydipsia have to be monitored constantly. If not, they’ll compulsively gulp and guzzle any fluid… drinking so much over and over they’ll essentially dilute themselves to death. Their body will fall into a terrible chemical imbalance, they’ll seize, their heart will stop, and they’ll die.
Because something in their mind can’t tell them when they’ve had enough.