Galip-olopoly
Wikisimpsons - The Simpsons Wiki
Galip-olopoly is a variation of Monopoly.
History
When the Simpsons are forced to stay inside, due to the acid rain, this game is among the board games Marge brings out.
Behind the Laughter
Galip-olopoly refers to the Battle of Gallipoli during World War I. It's likely that "Galip" is misspelled.