See It's Always Sunny In Philadelphia. Wine from a box which is then put in a can. Usually a Diet Coke can is used. Purpose: drinking wine in public with big gestures.
Dennis: Get this guy some wine in a can

Mac: Wow, I feel like this is perfect for my large, angry getures.

Dennis: Yeah well, we're not giving Frank an intervention for bad ideas.
by Fat Beezie June 13, 2010
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To drink in public by concealing your beverage in another container. Examples being Vodka in a water bottle, Rum/Whiskey in a Cola bottle, or wine in a can of red pop. The original reference is from It's Always Sunny in Philadelphia.
I like to walk around outside with a wine can.
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