The idiom of biggest wheels is often seen shortened to big wheel. A big wheel is a person who has power in an organization, including lower-level bosses, managers, and CEOs.
Clockwork isn't an idiom that I'm aware of. The work means something that is mechanical, driven by old-fashioned gears and wheels. It can also mean something that runs as smoothly as if mechanical, or something repetitive and mechanical-seeming.
I believe you mean a fifth wheel, as most vehicles have four wheels. It means that you don't fit into the group. You are an extra person when everyone else is paired up.
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.
yes they do there bigger then semi truck wheels also the mall truck has the biggest wheels
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.