Def 1: The abbreviation of "That's Awesome"
Def 2: Being incredibly awesome and the best.
(In reference of A-1 Steak Sauce, A-1 being the best)
Ex 1:
Guy 1: Did you hear Netflix is going to be free?!
Guy 2: Saucesome!
Ex 2:
Girl: I just landed that double back flip off the lifeguard stand!
Guy: Saucesome!
3👍 2👎