when a person is a mtf and ftm and both genders and no longer a man or woman but a boi. this boi disregards his birth assignment because it was iffy. and this boi doesn't care about what he presents to the world. he just is. and obtained enlightenment with its gender.
that boi keeps snagging fucks with both genders. shit needs to stop!
An informal way to call your friend or to exaggerate an achievement.
P1: Wassup boi, i just got a double nuke in codm today
P2:Good job mah boiiiiiiiiiiiii!