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MCON stands for Milk Comes Out Nose. Similar to such other acromnys as LOL but much more graphic. Created by me (Justin Caraway) but so far has yet to catch on.
"That was soooo funny it made me MCON"
by Justin Caraway August 09, 2006
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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