Hachine Gun
When someone laughs so hard it sounds like a machine gun and their friends pull out air machine guns and blast them until they stop laughing, then everyone laughs even harder.
My cousin laughed like a machine gun and my uncle shot air guns at him until he shut up, and then we all laughed like idiots.
During the movie, my friend cackled like a machine gun and my sister sprayed him with an air gun until he stopped, then we all laughed like maniacs.
At the party, my brother laughed like a machine gun, and my friends blasted him with air guns until he stopped, then we all cackled like fools.