diào​bì

to swing one's arms and leave

掉臂 diào//bì
to swing one's arms and leave
(literary) to swing or wave one's arms while walking away (often as a signal of refusal or unconcern), or to leave someone behind without looking back
to walk leisurely
(literary) To walk in a relaxed, carefree, or self-satisfied manner.
to rouse oneself
(literary) To rouse oneself; to act with spirit and energy.