Sport: Basketball

Arguably the dirtiest trash talker on this list, KG is one of those guys you hate if he's on another team, but love if he's on your own. He's been accused of calling Charlie Villanueva a cancer patient, telling Tim Duncan "Happy Mothers Day, motherfucker" totally aware that his mother died, and most recently (allegedly) telling Carmelo Anthony his wife La La Vasquez-Anthony tastes like Honey Nut Cheerios. You know you never go full sugar on the cereal. Original Cheerios or Raisin Bran, son!