1
general::
Phrase(s): done for
finished; dead. • I’m afraid that animal hit by the car is done for. • The goldfish looked as if it was either done for or sunning its tummy.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
1. Exhausted, worn out, as in This old computer is just about done for. [Colloquial; c. 1800] Also see DONE IN. 2. Doomed to death or destruction, as in Before he went to the hospital it seemed as if he was done for. [Colloquial; mid-1800s]
American Heritage Idioms