Source : WordNet®

dog-tired
     adj : 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}, {fagged},
            {fatigued}, {played out}, {spent}, {washed-out}, {worn-out(a)},
            {worn out(p)}]