The "Gal-Flop" is a measure of time used, whenever time does a flop. Devised by Gil-Gallad Stargazer during a time anomaly on the space station Void 7 "The Last Piper" above Aucturn.
A Gal-Flop is as such when a day happens at the same time, at the same place, twice.
The theory goes that time can, somehow, fold in on itself, creating a layer on top of itself.
"It's like time has flopped onto itself. A floppage of time." - Gil-Gallad Stargazer
The following may indicate that a Gal-Flop has happened:
- A large amount of deja-vu happening over the course of a day.
- Visible "cracks" that may show themselves as small lightning streeks, or as "cracks in reality". These may vary.
- Sudden head-aches and flashbacks. Voices and visions may also be indicators.
- The appearance of Hounds of Tindalos.
The definition of a Gal-Flop can be used when traveling time. The unit of a Gal-Flop is estimated to be in the region of 24 hours, over the course of less than a second, though variances may occur.
"We have travelled 9500 Gal-Flops!" - Indicating a time traveller had travelled 9500 days in a second.