Any mode of robbing. The toby is now a queer game; to rob on the highway is now a bad mode of acting. This observation is frequently made by thieves; the roads being now so well guarded by the horse patrole; and gentlemen travel with little cash in their pockets.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
See also the definition in Nathan Bailey's 1736 dictionary of canting and thieving slang.
Gambler * Game-1Nathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes