'Done for' definitions:

Definition of 'done for'

From: WordNet
adjective
Destroyed or killed; "we are gone geese" [syn: done for(p), kaput(p), gone(a)]
adjective
Doomed to extinction [syn: done for(p), ruined, sunk, undone, washed-up]

Definition of 'Done for'

From: GCIDE
  • Done \Done\, p. p. from Do, and formerly the infinitive.
  • 1. Performed; executed; finished. [1913 Webster]
  • 2. It is done or agreed; let it be a match or bargain; -- used elliptically. [1913 Webster]
  • Done brown, a phrase in cookery; applied figuratively to one who has been thoroughly deceived, cheated, or fooled. [Colloq.]
  • Done for, tired out; used up; collapsed; destroyed; dead; killed. [Colloq.]
  • Done up. (a) Wrapped up. (b) Worn out; exhausted. [Colloq.] [1913 Webster]

Synonyms of 'done for'

From: Moby Thesaurus