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1.
When you hold in a poop at the dinner table so long that you start to sweat.
I was trying to be polite but was nerve racked by the dreaded Dinner Sweats.
by DrDinnerSweat March 06, 2013
5347 4394
 
2.
The kind of sweats that are appropriate for dinner attire
SW: "Is the bad that I'm going to change out of these sweatpants into my pajama sweatpants?"
RW: "No, not at all. Those are 'dinner sweats.'"
by MLBOS May 28, 2011
17 33