By the late 1970s most major U.S. cities had thriving disco club scenes. Studio 54 was arguably the most well known of these nightclubs. Popular dances included the "Robot" and The Hustle, a very sexually-suggestive dance. Discotheque-goers often wore expensive and extravagant fashions. There was also a thriving drug subculture in the disco scene, particularly for drugs that would enhance the experience of dancing to the loud music and the flashing lights, such as cocaine (nicknamed "blow"), amyl nitrite "poppers", and Quaaludes". The other cultural phenomenon of the disco era was promiscuity and public sex in the clubs.
