Adjective has 1 sense

• dog-tired(s = adj.all) exhausted, fagged, fatigued, played out, spent, washed-out, worn out, worn-out - drained of energy or effectiveness; extremely tired; completely exhausted; "felt completely washed-out"; "he went to bed dog-tired"; "only worn-out horses and cattle"; "the day's shopping left her exhausted"; "the trembling of his played out limbs"; "was fagged and sweaty"; "you look worn out"