Low quality and/or cheap beer, usually light beer that is only appropriately drank for beer pong or when alcohol access is limited (e.g. highschool, fresh/soph year in college). Can be a derogative reference to beer that tastes like it's low in quality, as a means of recommending that the beer be changed.
Dude wtf get this pong juice out of here and let's get some rolling rock.

Dude there's nothing but pong juice left in this keg, let's switch it out.

Dude we need to get some more pong juice if we want to play with 12 people.
by fruitermelon January 3, 2010
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