What does 21 game mean?

21 game meaning in Urban Dictionary

A drinking online game. People matter from 1 to 21, whoever calls aside "21" is punished to take in (simply take shots).That player gets to include an innovative new guideline and starts a round.The player starting the round shows the path of play.Additional rules:Skipping one numberDoubling several and so onMistakes that can result in Penalties:Calling the prohibited numberHesitationMissing a turn