2) phonetic French for "rock-paper-scissors." (The 3 friends roshamboed for the bill after wolfing down a humongous lunch at the local diner. The loser promptly paid without protest.
3) a sick game employed to determine possession of a desired object in dispute. The two individuals either punch or kick each other to the clackers until one party either succumbs to the pain and just simply
gives up, or falls to the ground. The individual who remains standing emerges victorious and wins the game and possession of the object sought after.
The challenging party has a free kick square on the defending parties balls.
The act is then repeated for the other party until one party falls over. The remaining party standing is the victor.
It is also a very old word of Egyptian origin for the child game "Paper, Sissors, Rock".
In the TV series South Park, Cartman and his friends play the game "I'll Rochambeau you for it", by kicking the opponent in the crotch. The first one to fall over loses the game. This of course means the first person to go is usually the winner. This is a way of choosing, and it's called Rochambeau.