What is On The Sauce?
1.
drunk; referring to the runny texture of liquor. In verb form: "to be sauced"
Mike: What was up with Shelly last night?
Dan: Dude, she was on the sauce.
Verb: I am sooo sauced right now.
See
2.
A substitute for saying you're on drugs. Usualy in a joking manner.
Christina: "Why did you just shave that cat?"
Tiphany: "... ... ... 'Cuase I'm on the sauce!