Yeah, I don't even know if awesomesauce is even an internet thing. I first heard it (along with weaksauce) 8 years ago from one of my teachers.
I have a habit of retorting with, "your face!" Dunno when I started doing that... probably around the same time that I started attaching "face" to people's names. Daveface, Graceface, Lizface, Charlesface. Dunno why I do that.
I have a lot of idiosyncrasies, but I don't try and copyright them or anything.