SIIIIIICK is the gutteral utterance of a man who has just been blown away. It is the uppper limit of coolness, beat only the presence of more Is (between the S and the C).
A thing that ronaldo says when he scores a goal... (Oh god...).It became a meme...(for god's sake).It became popular when he got that golden ball thing and started screaming it.
Ronaldo: *Scores goal against Juventus for the CL final 2017*