IdiomNatureEnglish

chase rainbows

Meaning: To pursue something unrealistic.

Example: “He left a good job to chase rainbows in Hollywood.”

Origin: A rainbow can never be reached, however far one walks, and the pot of gold at its end is a folk tale. The phrase is common from the early 20th century; the 1918 song "I'm Always Chasing Rainbows" helped popularize it.

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