2yàuh chē hó 遊車河 — [to float down the highway] to drive around for pleasure, to go for a drive.
3yàuh fauh 遊浮 — [to go on a trip] to day-dream, to be inattentive (e.g. in class); (said of) a letter which cannot be delivered and is returned to the sender or lost.
4yàuh wàhn 遊魂 — [wandering ghosts] prison inmates who are about to be released (prison jargon, OS).