A game for two or more players, originating in Toronto. Historically, fans of Toronto's hockey team, the Maple Leafs, would celebrate a victory by engaging in a round of Bales.
The object of the game is to tap the opponent's scrotum, while avoiding getting tapped in the scrotum yourself.
The use of the word "blue" to refer to sexually explicit content was first recorded in Scotland in 1824. "Blue" meant "lewd" because prostitutes dressed in blue gowns.