(as) sour as vinegar

(as) sour as vinegar

Particularly unpleasant, disagreeable, peevish, or ill-tempered. After such a broken night of sleep, I woke up feeling as sour as vinegar. Her words were sour as vinegar when she greeted us.
See also: sour, vinegar
Farlex Dictionary of Idioms.

*sour as vinegar

 
1. [of something] very sour. (*Also: as ~.) This milk is as sour as vinegar. The juice they gave us is sour as vinegar.
2. [of someone] ill-natured and disagreeable. (Fig. on {2}. *Also: as ~.) The old man greeted us ill-naturedly, his face as sour as vinegar. Jill: Is Mary in a bad mood today? Jane: Yes, sour as vinegar.
See also: sour, vinegar
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • sour
  • sour as vinegar
  • vinegar
  • strike a sour note
  • hit a sour note
  • sour note
  • sourpuss
  • sorehead
  • come to a bad end
  • come to a bad/sticky end