a humorous, made-up term for a black five in extremely bad condition. Cubed is a mathematical term meaning that a number is multiplied by itself, then the result multiplied by the original number. Example: "3 cubed" would mean 3 multiplied by itself, giving 9, then 9 multiplied by 3 to get 27. Use of cubed is meaningless as applied to the condition of a black five other than to emphasize the seriousness of his condition.See also black five in this glossary.—9th ACC Volume 2 Approved Glossary