dead on one's feet
Also, dead tired. Extremely weary, as in Mom was in the kitchen all day and was dead on her feet, or I'd love to go, but I'm dead tired. The use of dead for “tired to exhaustion” dates from the early 1800s, and dead on one's feet, conjuring up the image of a dead person still standing up, dates from the late 1800s.
Words nearby dead on one's feet
dead matter,
dead meat,
dead metal,
dead nettle,
dead of,
dead on one's feet,
dead point,
dead president,
dead pulp,
dead ringer,
dead run