To be said after a sick block in a basketball game, representing the degree of badassness of the block. The longer the distance the ball goes upon being blocked, the louder and slower this must be said.
Oh, the defender went straight up and barely blocked the ball. Ehhh, not quite the ill nana.
Oh shit, that ninja just swatted the fuck out of that ball into the bleachers. That's that fucking Illlllll NaaaaNaaaaa.