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Welcome to English in a Minute!

When you "slip" you fall down. But how does something slip from your mind?

Slip (One's) Mind

Let's listen to Anna and Jonathan:

Slip One's Mind 遗忘

Anna: Look at this beautiful cake I made for the dinner party!

Jonathan: Oh no, is that tonight?

Anna: Yes! Didn't you make something?

Jonathan: No, it totally slipped my mind!

If you say something "slipped your mind" you forgot about it. You can say this about an event, a task or a personal detail about someone--such as their name.

People often say words like "completely" or "totally" before this expression. It totally slipped my mind! That completely slipped my mind!

And that's English in a Minute!