What is meant by fairy if my dad was Scottish and we played the game last one upstairs a fairy?

In some parts of Scotland, the last person to go upstairs to bed is sometimes called the "fairy."

The term "fairy" in this context does not refer to the mythical creatures of folklore but rather to the idea that the last person upstairs may be responsible for bringing good or bad luck to the household.

In the game "last one upstairs a fairy," participants race to be the first one to go upstairs, with the last one being designated the "fairy." Whether the "fairy" brings good or bad luck varies depending on the region and individual beliefs.