"Silver tongued" means a person is skilled with the use of words, very persuasive.
Expressing yourself readily, clearly, effectively.
The idiom "silver-tongued" refers to someone who is highly persuasive or skillful in speaking. It implies that the person has a knack for using language effectively to charm or manipulate others.
It's not an idiom. To listen closely means to pay attention and listen carefully.
It's not an idiom. The definition of "at stake" is what is being risked in the situation or venture. A stake is a share or ownership in something.
Having no clue what to say...
pay attention.
Being full of food .
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.
Simply its mean a bully.
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.
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.
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.