A take off on weak sauce. It implies something that can be classified as a type of sauce.
Rock, taken from
Rock-On, should be obvious as to its meaning. Therefore, Rock Sauce, is sauce that is
cool enough to be in the same genre as Rock n' Roll, or other Rockin' phrases (bitchin', ownin', or other words that end in " in' ").
Idiot: "So i was trying to
think of a phrase to say how (insert lesser adjective) the concert was last night, but there just wasn't any word (adjective) enough to describe it. The
band gave out signed guitars and there was free monster energy drinks all night.
Friend: Man, you should have used "
Rock Sauce".
Idiot: Do'h!