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1.
Any game you are more likely to lose than win, no matter how sweet the odds or how much it LOOKS like you'll win.
"Hey man, I'm gonna go play poker with Scott. You in?"
"Hell no, that's a mug's game. Scott's a professional magician, are you stupid? He'll rob you blind."
"Alright man, your loss. I like my chances."
by Fresnel February 09, 2010
 
2.
a fool's game... a game of chance ... a random guess
Investors might discover in the weeks ahead that calling a bottom in the housing downturn is a mug's game.
Wall Street Journal Justin Lahart wrote this sentence
by Jill M. Landsman January 09, 2007