Grasping a clump of grass or forbs in the distal portion of the trunk and shaking or slapping it vigorously to remove unwanted dirt.
A male grasps a clump of Sporobolus consimilus and, trying to knock off some of the dirt before beginning to eat it, he throws it against his right side several times, then onto his head twice and then against his left side. (Amboseli, Kenya)
