Om Nom is the candy loving green monster from Cut the Rope, the physics puzzle game released by ZeptoLab in 2010. Players cut ropes to swing candy into his mouth, and this sad noise plays when it falls instead. As gameplay clips and meme edits spread online, the sound became shorthand beyond the game itself. Its short length and clear emotion made it easy to reuse as a soundboard reaction, and it remains popular because almost anyone recognises the disappointment of losing a reward at the final moment.