Gai’anna
A Gai’anna is someone who’ll be your best friend until she finds out you’re being a total idiot, and then she’ll judge you in public.
You spill coffee on her new dress and she says, 'You’re lucky I love you, or you’d be dead.'
She yells at you in the middle of the grocery store because you forgot her birthday.
She texts you: 'I’m not mad, I’m just disappointed. Also, you’re an idiot.'