The person that the cheater is cheating with. You have the cheater, the cheatee, and the cheetHOE.
Damn that cheethoe, he slept with my wife.
a hoe for food, someone who likes a variety of foods
trisha paytas you’re such a cheethoe
that bitch ass hoe with a Cheeto spray tan. she a dumb ass.
Guy 1: oh damn that chick is hot
Guy 2: wtf man no she a Cheethoe don't waste your time