Chyeaah Share definition Flag umm cool word used by cool people. pronounced chuuh yeaah popular on myspace, aim, well everywhere hey. aren't we cool? chyeaah. chyeaah boyy. Chyeaah by Chelss July 22, 2006 0 0 Get merch Get the Chyeaah mug. Buy Now — $32.95 See more merch