Definition & Meaning of "open sesame"

What is the origin of ' open sesame'?

The origin of "open sesame" dates back to the story of "Ali Baba and the Forty Thieves," where the phrase is used to open the entrance to a secret cave filled with treasures. In the story, Ali Baba learns the command from the leader of the thieves and uses it to access the cave's riches. Today, "open sesame" is used figuratively or humorously to refer to any situation where access is granted or something is revealed, often with a sense of magic or surprise.