Jack-o'-lantern.
The term Jack-o'-lantern was used to describe the visual phenomenon known as will-o'-the-wisp in English folklore.
Many people carved their pumpkins and put them on display at Halloween time as decoration. They didn't know the full story of what a Jack-o'-lantern was.
It was based on folklore and retold in many different forms. But the most famous Jack-o'-lantern story was that it was born from a thief's soul that couldn't go to heaven or hell. Its spirit stayed on earth forever after Satan mockingly tossed him burning coal to show where to go.
That coal was put inside his pumpkin head, burning him from the inside.
"Jack o' the lantern! Joan the wad!"
The strange figure of Jack-o'-lantern that crouched on top of the roof of the taxi that got implanted on a tree started to sing a rhyme.
"Who tickled the maid and made her mad!"
Its voice was as if it came from deep in the abyss, echoing on the mountain they were in.