Wiktionary
t-day
n. (context US slang English) Thanksgiving Day; Turkey Day.
Usage examples of "t-day".
At such a low rate of acceleration, it had a powered endurance of nearly three T-days, and if it couldn't begin to match the massive acceleration rates of ship-to-ship missiles, unlike those missiles, its far lower-powered impeller wedge could be turned on and off at will, extending its endurance almost indefinitely.
At such a low rate of acceleration, it had a powered endurance of nearly three T-days, and if it couldn’.