1. An African-American who turns on a guy/girl; only used in a specific scenario, or event.
Matt: Whenever Brandon is around, Cierra seems to get horny.
Stephen: That's because he's an afrodisiac to Cierra, at least whenever he's around.
Matt: True, but Brandon should be very worried knowing Cierra has a penis.
An Afro that looks so good it turns you on.
"check out that guy's Afrodisiac!!"