A single digit good (often shortened SDG) is usually referred to when the total amount of goods is less than 10, but greater than 1. Although it's not limited to having a "clean score" (averages, misses and boos totalling 0), it's generally only called a true SDG when the only flaws you've made were getting those goods. The definition of a single digit good is often a controversial subject of discussion. (for example, can a final score of 9-2-0-1 be a single digit good ?) Additionnally, a perfect score (0 good) is called a AAA and a score of 1 good is called a Blackflag.