What does the Chinese phrase 開夜車 (개야차) literally mean?

ANSWER: "to drive (開) a night (夜) car (車)"
And what does "to drive a night car" mean in Chinese? It means "to burn the midnight oil" or "to work late into the night."

In the following Taylor Swift (泰勒絲 태륵사) song, the sentence "I stay out too late" was translated into Chinese as 昨晩開了夜車 (작만개료야차), which can literally translate as "Last night (昨晩) [I] drove (開了) a night car (夜車)."