A phrase used to describe anything irritating or meaningless, or just a stupid-ass comeback
Jim: Hey man, how's it going? I need you to raise and edit the financial budgets, get the wages going, and also our caffeine is out of stock, as well as monitoring the computers for possible transact-
Me: Yeah, whatever I ain't got time for this Mickey Mouse bullshit, I'm out fucker. *Grabs Harold and shoves him out of the window, falling out with him*
Timothy: Man, you'restupid for not knowing question 6.
Aanshi: Well you're a pile of Mickey Mouse bullshit.
Colorful way of describing any situation where immaturity, over repetitiveness in a child-like manner, or childish behavior that wears on someones nerves.
also can be used for almost any other BS situation the individual has to put up with repeatedly.
Possibly made in reference to Micky Mouse and his antics.