the deceptive practice of presenting an orchestrated marketing or public relations campaign in the guise of unsolicited comments from members of the public
cover (a sports field or other area) with a layer of Astroturf
the garden has been astroturfed for ease of maintenance
astroturfed tennis courts
disguise (an orchestrated marketing or public relations campaign) in such a way as to present it as having arisen from unsolicited public comments
there's a suspicion that he astroturfed the campaign behind the scenes
they alleged that the petition could have been astroturfed