Basically Yagga Yo the same as Yagga which is cocaine.
get it "could be defined in black and white...cuz its white"
Yagga yo is a way of sayin coke, blow, snow, white, soft, Fiyah, all the same meaning...cocaine.
meaning -"wheres the coke bitch?"
Yo sennnn on the Yagga nuh!
meaning "give me that fucking coke!"