1. the act or process of installing Astroturf on a surface.
2. (usually lowercase) the deceptive tactic of simulating grassroots support for a product, cause, etc., undertaken by people or organizations with an interest in shaping public opinion: In some countries astroturfing is banned, and this includes sponsored blog posts.
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Origin: First recorded in 1985–90; Astroturf + -ing
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