Nothing. Perhaps you mean "spin a YARN," which means to tell a story.
Nothing. You may mean "spin a yarn," which means to tell a tale or story.
An example for the use of the idiom 'it's a piece of cake' is: I can run that 100 yard sprint, it'll be a piece of cake'.
RFP is not an idiom. It's an abbreviation.
It's not really an idiom. It means "what are you thinking about."
It is not an idiom, it means your nose is itching.
You can't because it's not an idiom. Perhaps you mean "spill the beans," which means to divulge a secret that you weren't supposed to talk about. In that case, you might say "Don't spill the beans" or "Bobby spilled the beans and told Rachel about her surprise party."
idiom means expression like a page in a book
It's not an idiom. It means the tip of your nostril.
"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.
Simply its mean a bully.
The idiom your blood is boiling usually means that you are mad/furious.