a person who prevents others from having things that they do not need themselves. [alluding to the fable of the dog that lay in a manger to prevent the ox and horse from eating the hay.]
→ dog
A DOG IN THE MANGER
Meaning of A DOG IN THE MANGER in English
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004