party foul
When a party-goer smashs the top of the bottle of another party-goer with their own causing the alcohol to foam and overflow. A "Party Fowl" is declared and both parties must chug whatever froths from their bottle.
*"John" sees a "hot", but sober girl, holding a beer. He approachs and hits the top of her beer with his own beer bottle.* "Party Foul!" *Both "John" and the "Hot", but sober, girl must now chug any beer which begins to spill*
By Steven