甩动

甩动	shuǎi dòng	to shake / to fling one's arm / to lash / to swing
甩	shuǎi	to throw / to fling / to swing / to leave behind / to throw off / to dump (sb)
动	dòng	(of sth) to move / to set in movement / to displace / to touch / to make use of / to stir (emotions) / to alter / abbr. for 动词, verb