"Double Cup" refers to a popular beverage trend, particularly in hip-hop culture, where a combination of codeine syrup and soda is served in a double Styrofoam cup. This drink is often associated with the recreational use of lean, a concoction that can produce sedative effects. The drink gained notoriety through various music artists and has become a symbol of a certain lifestyle. While it may be enjoyed socially, it is important to note that the consumption of codeine can lead to serious health risks, including addiction and overdose.