Bobbles can be small mistakes which are not enough to really worry about. They can also describe movement, when something bobs up and down like a fishing bobber.
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.
bobbles
"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.
Simply its mean a bully.
Hair bobbles
The idiom your blood is boiling usually means that you are mad/furious.
"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.