Another way for saying boy, but to make you sound cool
You: Hey Bois
Cool kids: shut up moron
Back in the day racist white men wouldn’t use African Americans names instead calling them boi
“What you doing around here boo”
“Come here boi”
For all of you using boi as a replacement for "boy" you might be surprised to know that the term was coined by lesbian and transgender women for those that would dress and act as men, way before it ever became slang.
Look at that boi over there, she's cute.
you say boi when somebody does a very dumb thing 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.