noun. A scene or brief
moment in a motion
picture, featuring some element of sophomoric
or childish humor, that is out of place, and inapropriate
to the advancement
of the story. It seems to exist for no other reason than to make an idiot laugh for about 2 seconds.
Named in honor of George Lucas, for his propensity for including these inane moments in his films.
Lucasisms of note include:
An alien stepping
in poop outside of Mos Eisley in Starwars
A wookie giving
a tarzan yell as he swings from a vine in StarWars