The Battle of the Bulge was a major World War II battle fought in December 1944 and January 1945. It was the last major German offensive campaign on the Western Front during the war and was named after the bulge in the Allied lines it created. The term 'Battle of the Bulgy' is often used to refer to this battle. The crossword solution for this term is SUMO, which stands for Supreme United Military Operations, the code name given to the Allied forces involved in the battle.