SCUMM is the video game engine used for The Secret of Monkey Island, Monkey Island 2: LeChuck's Revenge and The Curse of Monkey Island. SCUMM stand for Script Creation Utility for Maniac Mansion and it is developed at Lucasfilm Games, later renamed LucasArts, to ease development on their first graphic adventure game Maniac Mansion (1987).
More recent computers have some difficulty running the older SCUMM games. As such, an emulator which allows smooth functioning called ScummVM had been created.
Scumm is also the namesake for the Scumm Bar.