It slipped my mind

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30 September 2026

It slipped my mind

We use this expression to say that we forgot something.

Written: Yes

Spoken: Yes

Formal: No

Informal: Yes

Example 1

Did you know it's Jonathan's birthday today?

It totally slipped my mind! I haven't got him a present or anything.

Example 2

Have you got the book I asked you for?

I'm sorry, it totally slipped my mind. Can I give it to you tomorrow?

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