Top definition
A Persian noun usually used for a worthless job or action. It's composed of "Kos" which means pussy (vagina) and "Moosh" that means mouse. The whole word however means nothing related to these parts. It's completely informal and often used with bury.
Hey merXad, forget about this job, it's all Kosmoosh burial.

I wasted a year burying kosmoosh in that company.
by BrainX December 25, 2008
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