1. phrasal verb
If you miss out on
something that would be enjoyable or useful
to you, you are not involved in it or do not take part in it.
We're missing out on a tremendous opportunity.
Well, I'm glad you could make it. I didn't want you to miss out.
2. phrasal verb miss
If you miss out something or someone, you fail to include them.
There should be an apostrophe here, and look, you've missed out the word 'men' altogether!
regional note: in AM, use leave out
What about Sally? You've missed her out.
COBUILD Advanced English Dictionary. Copyright © HarperCollins Publishers