Top Definition
A park in Los Angeles, also the title of one of the most awful songs ever, where the parks 'melts in the dark', like a cake left out in the rain.
MacArthur Park is melting in the dark, all the sweet green icing flowing down. Someone left the cake out in the rain. I don't think that I can take it, 'cause it took so long to bake it, and I'll never have that recipe again! Oh noooooooooo!
by cake wrecker December 07, 2003
verb: To defecate into a urinal.
noun: A pile of human feces in a urinal.

Etymology: References the line "someone left the cake out in the rain" of the famous Jimmy Webb song.

First known use: 2010
Who MacArthur Parked in the bathroom?
by Ektorp December 02, 2010
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