“A bee in your bonnet” means an idea that keeps buzzing in someone’s mind, often so much that they talk about it again and again.

The phrase “mad as a hatter” grew from hat making, where mercury exposure harmed workers and was linked with strange behavior.

An oxymoron combines opposite ideas in one phrase, often to add contrast, humor, emphasis, or a more complex meaning.

An egoist focuses on self interest. An egotist is excessively self important and talks too much about themself.

“Smoke and mirrors” started in stage magic. Today it describes deception, distraction, or flashy presentation that hides the truth.