dog in the manger
Definition from Wiktionary, the free dictionary
From a Greek fable about a dog preventing other animals from eating the hay in a manger, even though as a carnivore it could not eat the hay itself. Although the story was ascribed to Aesop's Fables in the 15th century, no ancient source does so.
- One who denies to others something that he or she cannot use.
one who denies to others something that he or she cannot use