1. An exclamatory phrase used to convey happiness when things that rock happen.
2. The opposite of weaksauce.
3. Concentrated rock awesomeness, refined futher through the wonders of science, to produce a substance so mindblowingly awesome that merely invoking it by name increases the amount of rock n roll in the universe.
Wow, I just found an original press of {awesome band}'s limited 9" for a fucking dollar! Rocksauce!
Guy A: See that girl over there?
Guy B: The one that looks like Natalie Portman reading the Bertrand Russell book?
Guy A: Yeah, her. I shit you not man, she told me to tell you she wants your number...
Guy B: ROCKSAUCE!
Sockface is a game you can play with your cat. To play sockface, you place a sock over the head of your cat, and watch the fun, and maybe take pictures if so inclined.
Rick: How'd you get all those scratces on your wrist, Wayne?