When a guy or girl, mostly girls at Sulphur High School, crave the attention of the opposite sex with a passion. Signs include this person consecutively liking pictures of you on Facebook, messaging constantly, etc. This feeling is usually not mutual, making it more annoying.
Man, I've got a date for homecoming already and she's still stalking my Facebook. She messaged me to ask if I wanted to go to her after party; she said she doesn't even know who else is going to go yet. She's so thirsty.
When a girl is so obsessed with what another girls does and she won't leave her alone. What the other girl does doesn't even concern her, and it's not even a big deal but the thirsty girl just won't leave her alone.
If a girl works at a restaurant and has to wear lingerie for a themed week, the thirsty girl is so jealous that she can't dress like that and make money so she bashes her for no reason