fit/ready to drop

fit to drop

Completely exhausted, fatigued, or worn out. I was fit to drop after only the first mile of the race; I could barely even walk for the rest of it!
See also: drop, fit

fit (or ready) to drop

worn out; exhausted.
See also: drop, fit

fit/ready to ˈdrop

(informal) very tired; exhausted: I feel fit to drop.We danced until we were ready to drop.
See also: drop, fit, ready