Subtle phrase coined by Sir James Dubya Hartington-line, meaning YAY and also NAY
YAY - "That sauce is so IN THE SAUCE!"
NAY - "That doggy poo is so not IN THE SAUCE!"
Used to describe great accomplishment or dismay, or to express disapproval
Dude, you won the lottery! You are totally in the sauce!
My girlfriend caught me with her sister last night. I'm so in the sauce.
That lazy son of a bitch is going IN THE SAUCE!