What does 'Over-egg the pudding' mean?
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.)
Idioms similar to 'Over-egg the pudding'
Buy our lists of British English, American English and Animal idioms in PDF format. They're perfect to use offline for reference or for use in class!