If a person is Throwing Mud Around they’re generally bad mouthing and slandering somebody. The origin of this expression is completely different to “Name Is Mud” and comes from a section of the American newspaper media in the early 1800s. Journalists who sullied other people's reputations were viewed as “mud slingers” and their newspapers known as the “the mud press”. More recently, such papers have become known as “the gutter press”.