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
AtİLla	-	Turkish
Taras	tah-RAHS (Russian)	Ukrainian, Russian
Eddy	ED-ee	English
Lizbeth	['lizəθ]
Ronja	RON-yah	Swedish
AljoŠA	-	Slovene, Croatian