It slipped from my mind. vs It was out of my mind.

[Hema Bernard]

Hi All

which is the correct sentences from these two sentences

When we forget something and we say

1. It slipped from my mind

or

2. It was out of my mind

[Kitosdad]

It slipped my mind.

Good morning Hema.

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If you need me, I'm here.

[Hema Bernard]

Good morning to you too Mr. Kitosdad

What does out of my mind mean

[Tomasito]

For me "Out of my mind" make more sense. This is because at one time it was in my mind and now is out.
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I am the product of my education and experience.

[Kitosdad]

Hi again Hema, out of your mind can be used as;

You are crazy.

You are extremely worried about someone or something.

You are in a highly agitated state.

"Slipped your mind", is that you have simply forgotten something, nothing more is implied.
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If you need me, I'm here.