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.
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.
The idiom "putting a spoke in the wheel" means to hinder or disrupt a plan or progress by creating obstacles or problems. It is used to describe actions that derail or obstruct someone's efforts or goals.
It's fifth wheel, and it means not needed or not wanted, as in a fifth wheel on an automobile.
Hi, I am in this situation sometimes. I have been in this situation 2 times. First time me and two friends hang out a lot then one day they decidied I was "bad" and they shruged me off. But anyway, a third wheel is when you are in a three way friendship and the 2 other friends just decide the other one isn't needed or they don't like him/her.
You put your shoulder to the wheel.
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.
Third Wheel was created on 2007-10-08.