A man, often a black man, who frequently talks about all the things he's GOING to do (but will never actually do).
Things an ima brotha might say are "Ima get the new Benz." "Ima go back to school." "Ima get a tattoo." "Ima take you out, girl." "Ima get my own crib." "Ima get a record deal."
Raheem's an ima brotha. You know he's never moving out of his mama's house.