Eat your hat
The phrase "Eat your hat" is an idiomatic expression typically used to express disbelief or doubt about something happening or being true. It implies that if the thing being doubted were to actually happen, the speaker would be so surprised that they would undertake an unusual or ridiculous action, such as eating their hat.
An idiom is a phrase or expression that usually presents a figurative, non-literal meaning attached to the phrase. Does that sound fun? It can be!
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