It's not really an idiom. It means "what are you thinking about."
You're out of your mind means your ideas are crazy.
Cleaning ones mind of misunderstanding
Mind your Ps and Qs means to use good manners.
The idiom, "You lost your marbles," means that you've gone crazy.
Nothing. "Loud of your mind" makes no sense as an idiom or a phrase. You should ask the person to tell you exactly what they did say and explain it to you.
It means to be more concerned about what you are doing than checking on what others are doing.
That means answering with the first thought(s) that come(s) to mind.
"Out of your mind" is an idiom. It makes no sense unless you already know that it means you are behaving in a crazy manner.
You don't. That's not an idiom. You are probably thinking of the phrase bear in mind, which is not an idiom. "Bear" means to hold or carry something, so "bear in mind" just means to keep something in your mind or think about it.Bear in mind, you should always look up the meanings of words in a dictionary.
An idiom is a phrase that makes no sense unless you know the definition. Can more than one person actually share a mind? No, so this is an idiom. It means that two people think very much alike on a subject.
RFP is not an idiom. It's an abbreviation.
It is not an idiom, it means your nose is itching.