A genie is a magical spirit from Arabian folklore who traditionally lives in a lamp or bottle and grants wishes to whoever releases them. In the famous tale of Aladdin and the Magic Lamp, a poor boy discovers an old oil lamp, rubs it clean, and out bursts a powerful genie who offers to grant his wishes.

The word comes from the Arabic jinni, which refers to spirits made of smokeless fire who exist in a realm between humans and angels. In traditional Middle Eastern stories, genies aren't always friendly wish-granters: they can be mischievous, powerful, and unpredictable.

Modern stories, including Disney's Aladdin, turned genies into comedic, helpful characters trapped in lamps, waiting to grant three wishes. These tales often include a twist: the genie must follow the exact words of each wish, so a careless wish might backfire in unexpected ways. Ask for a million bucks, for example, and you might end up with a million male deer instead of a million dollars.

The phrase “the genie is out of the bottle” means something has been released that can't be put back or undone, like when someone shares a secret that spreads throughout the school. Once certain actions are taken, there's no reversing them.