Not talking about sport of competitive play as in Monopoly or poker.
Rather :
Are you game - meaning are you ready to take on a task - full of fight.

".. on the game" - prostitution

Gamey - smell of rotten foodstuffs, usu meat.

Game- lame as in "a game leg."

How many are common to you, your neighborhood?
Do you use the word often, or at all?
Or can't you get your head "into the game."