In the game of Monopoly: The act of purchasing a territory for the sole purpose of preventing another player from acquiring a monopoly.
Since you own North Carolina and Pennsylvania Avenue, I am going to buy Pacific Avenue to stonopoly you.
by Z-Dog Gryder September 14, 2008
1 more definition
In the game Monopoly: to stop a monopoly by purchasing a property in a section that another player is one property away from monopolizing.
I'm going to stonopoly your monopoly by buying Atlantic Avenue!
by Z-Dog-Pharizle August 24, 2008