Top Definition
can be done in two ways:

1)drink a gallon of milk quickly and try and hold it down for an hour or more.

2)requires 2 or more people, drink a gallon of milk quickly at the same rate. last one to throw up wins.
whats wrong with him?

he got his ass kicked at the dairy challenge.


whos down for dairy challenge?
by Sir Joseph Price April 09, 2007
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