n. An advertisement with an anti-marketing message.
Other Forms
The television "uncommercial", and its equivalent in the printed media, the "subvertisement" is fast becoming one of North America's most admired art forms.
—Judy Jones, “Subvertising,” The Independent (London), November 27, 1996
One "subvertisement" shows a bald man watching television. The camera pans to reveal a universal bar code stamped on the nape of his neck. "Your living room is the factory," says a voice. "The product being manufactured is you."
—Miro Cernetig, “Adbusters wipes shine off glossy magazines,” The Globe and Mail (Canada), May 25, 1995
1992 (earliest)
Their strategy is to meet the enemy on its own turf. They take space on billboards, in magazine ad slots and on commercial television — they even distribute T-shirts — to plant critical messages in the style of the targeted offenders…

Such forms of "subvertising," as jammer ally Mark Dery tags them, have surfaced in numerous cities, from Los Angeles to Portland, Me.
—Ronald K L. Collins, “Waging war on culture pollution,” Los Angeles Times, November 22, 1992