1) A term for a large black man from the Louisiana, bayou area with a sweat-stained tank-top. 2) Expression of Negro glee.
1) Pettigrew: I'm from the bayou.
Tom: Stupid bankadoo.
2)Jamal: Hey Granpappy, i just caught a big ol' fish!
Pettigrew: Well, bankadoo! Looks like we gots us some dinna!