(idea) by Jurph Fri Jul 27 2001 at 2:06:32
adj. Military abbreviation: Temporary DutY.

Pronounced by spelling: "Tee Dee Why." Any duty lasting less than 180 days; usually implies travel. "I was TDY to Lackland," or "He went TDY to Germany and made almost a thousand bucks in per diem!" Also a noun, as in: "I've got a 60-day TDY to Keflavik that starts on 15 November, so I miss Cheese Day, Thanksgiving, Christmas, and New Years' Day just so I can protect Iceland from the evils of communism." Compare PCS, PCA, TAD.

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