Top Definition
Milk coming out of my nose. Used when one is participating in the act of drinking milk while hearing a funny story and thus brings upon said acronym.
P1"What did the grape say when somebody stepped on it!?"
P2 "Hmm, I am not sure!"
P1 "It let out a little "whine!"
P2 "Mcoomn"
by Nitsua12 March 02, 2010

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