罰ばっ杯ぱい

noun

penalty drink; forfeit drink

Refers to alcohol one must drink as a punishment, typically in social drinking games or as a penalty for being late to a gathering.

• 遅ち刻こくしたので罰ばっ杯ぱいを飲のまされた。

  I was made to drink a penalty drink because I was late.

• ゲームに負まけたら罰ばっ杯ぱいだよ。

  If you lose the game, you have to take a forfeit drink.