IdiomFood & DrinkEnglish

a pie-crust promise

Meaning: A promise that is easily broken.

Example: “His promise to call every day was a pie-crust promise.”

Origin: Pie crust is made to be broken. Jonathan Swift used the comparison in Polite Conversation (1738), and Mary Poppins says it in the 1934 novel: "Easily made, easily broken."

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