mug's game

A task or activity that is foolish, dangerous, or will not result in a positive outcome. Primarily heard in UK. Allowing your children to play with fireworks is a mug's game. They are bound to get injured.

Common Names:

Name	Pronounced	Usage
Enoch	EE-nək (English)	Biblical, Biblical Latin, Biblical Greek
Eun-Jeong	uwn-jung	Korean
ConrÍ	-	Irish
Kestrel	KES-trəl	English (Rare)
Carwyn	-	Welsh
Armin	AHR-meen	German