Straw man
A straw man argument is an informal fallacy based on misrepresentation of an opponent’s position. To “set up a straw man” or “set up a straw man argument” is to describe a position that superficially resembles an opponent’s actual view but is easier to refute, then attribute that position to the opponent (for example, deliberately overstating the opponent’s position). A straw man argument can be a successful rhetorical technique (that is, it may succeed in persuading people) but it carries little or no real evidential weight, because the opponent’s actual argument has not been refuted.
Its name is derived from the practice of using straw men in combat training. In such training, a scarecrow is made in the image of the enemy with the single intent of attacking it. Such a target is, naturally, immobile and does not fight back, and is not as realistic to test skill against compared to a live and armed opponent. It is occasionally called a straw dog fallacy, scarecrow argument, or wooden dummy argument.
source: wikipedia
