This
database is a comprehensive collection of all the American idioms and slang available.
American Idioms are many and varied. We hope you enjoy our collection. We are adding more all the time.
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(UK) If you over-egg the pudding, you spoil something by trying to improve it excessively. It is also used nowadays with the meaning of making something look bigger or more important than it really is. ('Over-egg' alone is often used in this sense.)