Dat (blank) doe is a catchphrase that can be translated to formal English as “that (blank) though.” It is used to emphasize that something is particularly awesome and is often capitalized. For example, DAT BACKFLIP DOE or DAT ASS DOE.
A very attractive, well-rounded, complex, deep thinking woman with a PhD in engineering, a penchant for volunteering her time to animal shelters on the weekend and a love of cross country skiing, walks by a group of young men.

Man 1: You lookin' fine baby!
Man 2: Dat ASS doe! Mmm!
Man 3: Dat blank doe! (likely "rack" or "booty" or something else equally degrading)
by KaseyH November 18, 2013
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