Something or someone that is so cool the meaning is useless when applied to said person/thing. In times like these, one must use the correct Really Cool to verbalize the utter coolness of said holy object...person/thing.
Synonyms for Really Cool
On this page, you will find 30 slang terms related to Really Cool. Some of the top words include: skizzle-it, Tits, o snap, toner, shizat, and 25 more.