# shut my mouth

idiom

Source: https://englishreference.com/idiom/shut-my-mouth
Updated: 2026-08-10

## Meaning

An exclamation of surprise or astonishment.

## Examples

- Shut my mouth, I cannot believe you won the lottery!
- When she told me she was moving to another country tomorrow, I just said, shut my mouth, that is a huge surprise.
- Upon hearing that the quiet librarian had actually written a best-selling mystery novel, I could only exclaim, shut my mouth, as I was completely stunned by the news.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.