To spoil something that is good or something that you have, by being greedy. - A proverb. * /Mrs. Jones gives you an apple from her tree whenever you go by her house, but don't kill the goose that laid the golden egg by bothering her too much./
KILL THE GOOSE THAT LAID THE GOLDEN EGG
Meaning of KILL THE GOOSE THAT LAID THE GOLDEN EGG in English
Dictionary of English idioms . Словарь английских идиом. 2012