1) Place where the Super Mario games take action.

2) ''Going to Mushroom Kingdom''; To Trip with LSD, Acids, Mushrooms or any other hallucinogen drug. As the Mushroom Kingdom is a happy place with lots of colors, just like the place you go when you trip with these drugs. Also because of the word ''Mushroom'' in ''Mushroom Kingdom''.
1) The Mushroom Kingdom is being attacked by Bowser!

2) Oh man... im going to Mushroom Kingdom right now...
by EReto December 1, 2013
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