'dog-tired' definitions:

Drained of energy or effectiveness; extremely tired; completely exhausted; "the day's shopping left her exhausted"; "he went to bed dog-tired"; "was fagged and sweaty"; "the trembling of his played out limbs"; "felt completely washed-out"; "only worn-out horses and cattle"; "you look worn out" [syn: exhausted, dog- tired, fagged, fatigued, played out, spent, washed-out, worn-out(a), worn out(p)]