Political term that means pseudo-equal rights group or artifcial equal rights group. This groups or organizations tend to call them selves a organization that supports freedom and equality; however that is nothing more a backdrop for a biased unequal agenda.
Groups like Accuracy In Academia and Students for Academic Freedom are good exaples of Astroturf Groups. They put on the identity of being a organization that supports equality, but actually are trying to advance a political bias
"That Astroturf Group are really annoying" Bob said.