Wordnet 3.0
ADJECTIVE (1)
1. 
 drained of energy or effectiveness; 
 extremely tired; 
 completely exhausted; 
- Example: "the day's shopping left her exhausted"- Example: "he went to bed dog-tired"- Example: "was fagged and sweaty"- Example: "the trembling of his played out limbs"- Example: "felt completely washed-out"- Example: "only worn-out horses and cattle"- Example: "you look worn out"[syn: exhausted, dog-tired, fagged, fatigued, played out, spent, washed-out, worn-out(a), worn out(p)]
WordNet (r) 3.0 (2006):
dog-tired
    adj 1: 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)]