silver bullet

WordReference Random House Unabridged Dictionary of American English © 2025

sil′ver bul′let, 

1. a quick solution to a difficult problem.
• from the belief that supernatural beings, as werewolves, can be killed with a silver bullet 1930–35

sil′ver bul′let, 

1. a quick solution to a difficult problem.
• from the belief that supernatural beings, as werewolves, can be killed with a silver bullet 1930–35