1.) A film directed by Godfrey Reggio and scored by Philip Glass, known commonly for having no spoken words; only images and sound. First part of the 'Qatsi' trilogy of films including Powaqqatsi and Naqoyqatsi.
2.) A Hopi (Native American) word meaning "life out of balance".
I watched Koyaanisqatsi with my buddies last night.