Simply its mean a bully.
It is not an idiom, it means your nose is itching.
idiom means expression like a page in a book
I think it means that that person agrees with that others persons idiom and that it fit that question that the teacher or whoever asked that question.
This is not an idiom - it means exactly what it says. You should stay fit and healthy.
The correct idiom is "a frog in my throat," meaning that your voice is hoarse and croaking.
It's not really an idiom. It means "what are you thinking about."
RFP is not an idiom. It's an abbreviation.
It is not an idiom, it means your nose is itching.
It's not an idiom. It means the tip of your nostril.
idiom means expression like a page in a book
"Sieve" is not an idiom. See the related link.
This is not an idiom. It is a measurement. $100,000 is how you write it in numbers.
The idiom your blood is boiling usually means that you are mad/furious.
Nothing. You have left out part of the idiom. Perhaps you mean "your hands are tied," which means that you have no power to do anything in a given situation.
"Penniless" is not an idiom. It means that you don't have a penny to spend. It's used as an exaggeration to mean that you don't have any money.
I think it means that that person agrees with that others persons idiom and that it fit that question that the teacher or whoever asked that question.
Nothing - it looks like some kind of abbreviation instead of an idiom.