Top Definition
Acronym for "Thank You, Drive Through". A facetious internet acronym used after answering easy questions or after making a smartass look like a dumbass.
Poster #1: Did you ever think the reason I'm fat is because I'm genetically predisposed to it?

Poster #2: No, it's because you eat too damn much. TYDT!
by D. Arse August 13, 2007

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