A poor woman who has none of the “Three” or the sole things that make a woman physically attractive (boobs, ass, thighs). Can also be an adjective. And since personality is always overlooked, even a woman like this will be ignored and set up for doom.
Dillon: hey bro, look. Chelsea just snapped me. Chelsea from Biology.
Ace: oh, hell nah. Don’t answer. She’s zero outta three, for real.