truth or dare

Short definition from Wiktionary

Noun

1. 1
   A game where players take it in turn to perform a dare set by the other players, or truthfully answer a question put forth by them.

Interjection

1. 1
   The question asked during the truth or dare game, in which a player asks another player to choose between the two.

Proper noun

1. 1
   Alternative letter-case form of truth or dare.