(US, idiomatic) A person or thing of consequence.

(cooking) A type of moist quick bread made with pumpkin.

plural of pumpkin bread

A Madagascan plant, Gunnera perpensa.

Pumpkin spice.

plural of pumpkin pie spice

(childish) Someone who cheats.

(childish) extended form of easy peasy

(astronomy, slightly dated, mnemonic) Used to remember the order and names of the nine planets of the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto.