The idiom your blood is boiling usually means that you are mad/furious.
It means being ticked off, or very mad.
"Blue blood" LITERALLY means blood that is blue in color.
get scared or terrified
"That really burns me up."
It means that you are genetically pre-dispositioned to either enjoy music or to play it. "In your blood" refers to the DNA you get from your ancestors.
It is not an idiom, it means your nose is itching.
It's not really an idiom. It means "what are you thinking about."
RFP is not an idiom. It's an abbreviation.
"Sieve" is not an idiom. See the related link.
It's not an idiom. It means the tip of your nostril.
idiom means expression like a page in a book
This is not an idiom. It is a measurement. $100,000 is how you write it in numbers.