black thumb

Etymology
By analogy to.

Noun

 * 1) A lack of skill in gardening; brown thumb.
 * 2)  An inability to make animals or plants in one's care thrive.
 * 3) A person with a black thumb.
 * 1)  An inability to make animals or plants in one's care thrive.
 * 2) A person with a black thumb.
 * 1) A person with a black thumb.
 * 1) A person with a black thumb.
 * 1) A person with a black thumb.
 * 1) A person with a black thumb.