Noun: Epic sauce is the very essence of epicness. It epitomizes the highest degree of achievement most people can expect to achieve. A synonym for epic sauce is leet sauce; however, epic sauce much more preferable than leet sauce.
Mercrutio: "I think Transformers was a pretty epic sauce movie."
François: "Are you kidding me? Superbad was an epic sauce movie. Transformers was only a leet sauce movie."