Overview
XXX is a term that hold many meanings. One of the most popular terms is for pornography within the west, this most likely came from the X rating, a rating mistaken as pornography.
Alcohol content uses X, XX, and XXX, with XXX being the strongest. In roman numeral it means 30.
XXX is also a South Korean hip hop duo and name of albums of these bands/singers: Asia, Danny Brown, Jimmy Edgar, ZZ Top. ZZ Top also had a tour called XXX Tour.