21 dare is like truth or dare in many ways. People take turns to count up to 21, but can only count 3 numbers up.
Whoever lands on 21, gets the truth or dare.
person1: 1, 2, 3

Person2: 3, 4
person 3: 5, 6, 7
person1: 8
person2: 9, 10, 11

etc etc

person1: OH SHIT, I GOT 21 DARE.
person 2&3: HAHAHAHAHH! Truth or dare!?
by ilybby August 21, 2010
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