Vinegar

/ˈvɪnɪɡər/

Synonyms

  • acetic acid
  • pickling liquid
  • sour wine

Slang Meanings

To be sour or unpleasant in demeanor.
Stop being so vinegar today, lighten up!
A term for a cheap or inferior version of something.
That new restaurant is just vinegar compared to the one down the street.