The redundant fusion of chill and relax. Mostly used by wannabes and poseurs with lower than average IQs, and Middle schoolers...
HELLO! To chill is to relax!
Middle schooler/idiot: Just chillaxing man, whats the haps?
Me: Did you just say chillax?
Middle schooler/idiot: Yeh homes, whats it to ya?
Me:(no response as I walk away)