Longman Dictionary of Contemporary English
Wiktionary
n. (context arts English) A form of art in which the artist creates a live performance, often using a variety of media
Wikipedia
Performance art is a performance presented to an audience within a fine art context, traditionally interdisciplinary. Performance may be either scripted or unscripted, random or carefully orchestrated; spontaneous or otherwise carefully planned with or without audience participation. The performance can be live or via media; the performer can be present or absent. It can be any situation that involves four basic elements: time, space, the performer's body, or presence in a medium, and a relationship between performer and audience. Performance art can happen anywhere, in any type of venue or setting and for any length of time. The actions of an individual or a group at a particular place and in a particular time constitute the work.
Usage examples of "performance art".
I mean, I fuck around -- performance art, that kind of shit -- but Sam's the real fucking talent.
On January 25, 2000, a 24-year-old student of darkness dreamed up and performed what must be the vilest display of performance art on a college campus in this century.
Lynn's very much a pacifist, and Stealth, well, I think he considers violence some sort of performance art.
She had a little party and turned it into a piece of performance art.
Ancient traditions that had once been employed in the service of constructing impressive underground chambers had been transformed into a wondrously intricate kind of performance art human acrobats could only hope to emulate, but never duplicate.
She is dating a teen rebel who owns a motorcycle, even if she is not allowed to ride on it with him, and gets to do cool stuff like go to the opening night of a performance art piece featuring a punk rock band throwing pieces of raw meat at a screen on which are projected various photos of world leaders.
The idea of her butt looking like a piece of performance art was too funny to bury in silence.