Fetish Ball
From BDSM Wiki
A Fetish Ball, sometimes referred to a Fandango, is a social mixer event that includes Fetish Attire and sometimes may include light play Scenes (such as spanking, hair pulling and light flogging), dinner, music, and dancing.
Unlike a Play party, a fetish ball is often geared more heavily towards socialization rather than scene play, and often heavy scenes and edge play are not encouraged and may even be discouraged at such an event.