An artificially-manufactured political movement designed to give the appearance of grass roots activism.

Campaigns & Elections magazine defined astroturf as a “grassroots program that involves the instant manufacturing of public support for a point of view in which either uninformed activists are recruited or means of deception are used to recruit them.”

Unlike natural grassroots campaigns which are people-rich and money-poor, an astroturf campaign tends to be the opposiite, well-funded but with little actual support from voters.