something that is useless or unsuccessful
The compaign against the killing of endangered species was a dead loss.
The meeting was a dead loss because nothing went according to plan.
(a) /vekst/ full of difficulties
Human smuggling is another vexed issue.
His new article sheds light on the vexed question of authanasia.
to be very tired but still standing, working, etc.
By the end of the day, the workers were dead on their feet.
extremely tired
After the run they were fit to drop.
to be very tired
I'd just walked ten miles and was ready to drop.