MEANING: noun: Finding fault with or expressing disdain for something one cannot have.

ETYMOLOGY: From the Aesop’s fable The Fox and the Grapes, in which a hungry fox tries to reach grapes hanging on a high vine and when unsuccessful, declares that the grapes are probably sour. Earliest documented use: 1760.

POUR GRAPES - another euphemism for "wine"

SOU GRAPES - used to be used to make a very cheap French wine

SOUR GRIPES - the Song of the Disgruntled