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the perfect compliment to 'weak sauce.' originating at the prestigious bishop feehan high school. To say something is, or has 'thin crust' is to say that it has little or no solid ground to stand upon, or that an event or happening was particularly lame.

2) can be used to describe just how thin the crust is.
1) J-Fo's math test today was definitely thin crust with a side of weak sauce.

2) man, that test had the thinnest crust of all.
by matt 'stay classy' smith July 31, 2005
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