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
Dorothy	['dɔrəθi]
Gentry	['dʒentri]
Ronen	-	Hebrew
Idida	-	Biblical Latin
Qasim	KAH:-sim (Arabic)	Arabic, Urdu
Kaja (1)	KAH-yah (Swedish, Estonian)	Norwegian, Danish, Swedish, Estonian, Slovene