Tic
Simple motor tics are typically sudden, brief, meaningless movements that usually involve only one group of muscles, such as eye blinking, head jerking, or shoulder shrugging. Motor tics can be of an endless variety and may include such movements as hand clapping, neck stretching, mouth movements, head, arm or leg jerks, and facial grimacing.
List of motorized trikes
List of motorized trikes is a list of motorized tricycles also called trikes, and are sometimes considered cars. Three main configurations are motorized bicycle with side-car, two wheels in rear one in front, and two in front one in the rear (aka reverse trike). However, language and definitions vary.