The act of going out on a Thursday night and drinking a minimum of 5 pints of an alcoholic beverage of your choice. Thus consigning any hangover to a Friday morning at work.
Hey gents we going out for 5 Pint Thursday?

Fuck it its 5 Pint Thursday lets get Razzed!
by adjvee October 29, 2008
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Going out on a Thursday for 5 pints, not 4 pints, not six pints. Five pints
by Richard Large November 16, 2008
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