What is the meaning of slipped through my mind-idioms?

The idiom "slipped through my mind" means that something was forgotten or overlooked. It implies that the speaker had the information or thought in their mind at some point, but they failed to remember it when it was needed.

Here are some examples of how to use the idiom:

* "I was going to buy you a birthday present, but it completely slipped through my mind."

* "I'm so sorry I forgot to call you back, it just slipped through my mind."

* "The deadline for the project slipped through my mind until it was too late."

Other idioms that convey a similar meaning:

* Went out of my head: This idiom means that you forgot something, often temporarily.

* Flew out of my head: Similar to "went out of my head," but emphasizes the feeling of being surprised that you forgot.

* Escaped my memory: This idiom emphasizes that you have no recollection of the information.

These idioms are often used in informal conversation, but they can also be used in more formal settings.