The term 'pumpkin' typically refers to particular varieties of Cucurbita pepo - squash - that are round and typically have orange flesh and and orange skin. Less commonly, 'pumpkins' may also be similar in appearance but from other species such as Cucurbita maxima. Also to note, some countries may use the term 'pumpkin' to refer to a variety of winter squash.
Pumpkins are a winter squash type (as opposed to summer squash), meaning that fruits are harvested when fully mature. They have fully formed seeds, a tough skin or rind, and usually store well through the winter. Fruits grow on extensive vines with broad, five-lobed leaves.
In both the Book series and in real life, pumpkins are a vegetable used primarily for food. They are also used for decorations in the Autumn season and around Halloween in some countries. Most parts of the pumpkin plant are edible. Other than the fruits, the flowers can be eaten, seeds can be roasted and eaten or processed to extract oil, and the leaves of some varieties are consumed.
Later, Hiccup uses food from the table to fight his way out of the Hysteric Great Hall.
|“||So, in the absence of his sword, Hiccup picked up two large, sloppy, creamy pumpkin pies, and crashed them like cymbals on either side of another Warrior's face.||”|
|— Book 4|