Definition of "disco"

Burn down the disco / Hang the blessed DJ / Because the music that they constantly play / It says nothing to me about my life

1986, Morrissey & Johnny Marr (lyrics and music), “Panic”, in The World Won’t Listen, performed by The Smiths

And black music became a hot commodity in the form of disco, its lyrics and rhythm laced with a palpable (even ethnic) amiguity, helping people dance and escape their concerns. Even the cry of “burn, baby, burn”, a popular chant during many a 1960s urban rebellion, was co-opted by the times, becoming the chorus for the 1977 dance hit “Disco Inferno.”

2009, Marcus Reeves, Somebody Scream!‎, Farrar, Straus and Giroux

The cause of his ill health is left a little obscure, and no wonder, because shortly before his dreadful deathbed scene he's well enough to join the women in a wild night of disco dancing. You have not lived until you've seen Martin Landau discoing.

2013, Roger Ebert, “B.A.P.S.”, in I Hated, Hated, Hated This Movie‎, Andrews McMeel Publishing

Learning that a discoing sex appeal has returned to the runways is a little like hearing that Barbra Streisand and Barry Gibb are reuniting.

2009 February 16, Cathy Horyn, “Designers Square Off: Sexy vs. Classy”, in New York Times‎