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In other words, you're in deep shit.

It is one of the "Infinite" properties of Camponium.
You didn't finish your paper? You're lost in sauce!
by Dr Nick November 21, 2002
Clueless. Totally lost. Having no idea.
That guy doesn't know his head from his ass. He is really lost in the sauce!
by James Kimmerle December 01, 2003