Boi can be used in the occasion where some one either says or does something stupid or when roasting/dissing/clowning/bagging on someone usually the right hand is directed in someone’s direction 👋
1 Zach: Boi you built weird . Damian: Boi why you talking your head tilts when you walk
2.troy: I hate when someone asks to borrow money. Troy later can I borrow money. (Boi)
you say boi when somebody does a very dumbthing or says it.you can also say it when you are about to roast somebody. when you say boi you got to point you hand at the person.
Bob: i hate the U.S i am moving to California.
You: Boi
another example for a roast
Mark: i got this sweet hair cut (terrible hair line)
You: Boi your Hair line looks like 20 mt everests lined up together.