萬聖節兒歌"Trick or Treat"的歌詞如下：
Trick or treat, who's that behind the door?
Mummy says, "Be nice, or else you'll get a treat."
Trick or treat, who's that upon your bed?
Eddie says, "Don't move or you'll get a fright."
Hear it go up and hear it go down
Bibbidi bobbidi boo
When the clock strikes twelve on Halloween
Hang a shingle up and call for fun
Trick or treat, every one to see
Says the ghost with the bobbing green light on.
Come on in and treat yourself to some fun
Everybody come and play with me.
Trick or treat, treat or trick, we all get to guess
Which it is and what to do next.
Scream and shout with laughter and fun
This is Halloween.
歌詞的大致意思是：出來玩的小孩對門口的神秘訪客提問“惡作劇還是款待？”，接著小孩在床上看到一些“不尋常”的東西，而時鐘指向12點時，一切都變得“不同尋常”。小孩們出來玩，享受樂趣，猜測接下來會發生什麼。最後，小孩們尖叫、歡笑，盡情享受萬聖節的樂趣。
以上信息僅供參考，如果需要更多信息，可以查看英文原版歌詞。