a fable (=a traditional short story that teaches a moral lesson) by Aesop in which a fox tries many times to reach some grapes that are hanging above his head. When he realizes that he will never be able to reach them, he pretends that he never wanted them, saying "They're probably sour (=having an unpleasant acid taste) anyway". This attitude is called sour grapes
purplish-black wild grape of the eastern United States with tough skins that slip easily from the flesh; cultivated in many varieties native grape of northeastern United States; origin of many cultivated varieties e
A wild grape (Vitis labrusca) of the eastern United States that bears purplish-black berries and is the source of many cultivated grape varieties. Also called skunk grape