The babu is a mystic force that has embodied itself in the one known as "Ali Sana." He is its messiah. He is THE BABA.
It is a term that can be used only by him, and as such, it's definition is variable but always stays true to the aforementioned essence.
One may attempt to be deemd a babu or be allowed into the sacred circle of babu-ism by being a disciple of The Baba.
Ethnic - "That uncle is such a babu"
Comraderie - "Yo . . . you ma babu"
Check out this nice car, its a real Babu.
I've been savin up 3 grand so i can Babu my crib!