Jack-o-lantern is typically a carved pumpkin. Jack is associated chiefly with the holiday of Halloween and was named after the phenomenon of strange light flickering over peat bogs, called jack-o-lantern. In a jack-o-lantern, typically the top is cut off, and the inside flesh then scooped out; an image, usually a monstrous face, is carved onto the outside surface, and the lid replaced. It is typically seen during Halloween.
Sections of the pumpkin are cut out to make holes, often depicting a face, which may be either cheerful, scary, or comical. More complex carvings are becoming more commonly seen. Popular figures, symbols, and logos are some that can now be seen used on pumpkins