galiber
A galibe is a guy and a girl who are best friends, talk all day, become roommates, and then start cheating on each other and having wild sex with other people.
My friend is a galibe. He and his best friend sleep in the same bed and cheat on each other every night.
They started as friends and now they're both cheating on each other and smoking weed like it's a religion.
They're so close they even share the same bed and sometimes they fight over the same blanket.