The Biggest Win

Sweep, Blow-out, Walkaway… GAMMON!  The last term is used when someone wins a game of Backgammon by “bearing off” all of their pieces, utterly defeating the opponent who has not been able to remove a single piece.  If you achieve this type of victory, you can hold your head up high and say “I won by a GAMMON!”  Don’t be surprised if you get quizzical looks, though.  I’m not sure the phrase ever really caught on.