The phrase "disco era" refers to a period of time, mainly in the 1970s, when disco music and culture had a significant influence on popular music, fashion, and social activities. Full definition
This is such a classic example of disco era stye dressing, so easy, yet so chic. (1stdibs.com)
Obama also commuted the sentence of Oscar Lopez Rivera, who was convicted for his role in a Puerto Rican nationalist group linked to more than 100 bombings in New York and other cities in the 1970s and 1980s; and to Ian Schrager, who revolutionized New York City nightlife in the»70s and»80s disco era with Studio 54. (nystateofpolitics.com)
One of the points of DAMSELS is that the social dancing practices of Society that made the deb balls possible, and which dance-wise received a brief revival / reworking during the classic disco era — i.e., musically and socially reworked in a more democratic and improvised manner — are now almost completely dead. (firstthings.com)