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Derives from when a person is drinking milk and someone says something so funny the person consuming the milk cannot help but laugh whilst drinking. The cause of this is milk to go flying everywhere.

Normally expressed on online chats when some one quotes a horrificly funny and well timed joke. Such as Typing Leroy Jenkins Whilst charging your whole army at your opponent in a total war game (TW).
Person A tell's a hysterical joke.

Person B: If I was Drinking Milk right now....
by Papa C 617 October 06, 2011
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