Spare Wheel

A person who is going out with two couples. They become the pare wheel because there are 4 tyres on a car. It is worse than third wheeling because the two couples have ‘couple things’ to discuss and the spare wheel is just lonely, or as per usual unused.

Couple 1: “hey did you want to come out with us and couple 2?”

Spare wheel: “yeah sure” *inside their head* “dang it now I’m gonna be a spare wheel”