From the back of the box:
"Grab some friends and get ready for rounds of laughter as each player is put on the hot seat. The hilarity begins when you have to choose from the wild & wacky statements your friends pick to describe you. Will they reveal hidden quirks or will you all share a good laugh at their absurd choices?
This easy-to-learn game will get the party started! More than 2000 unique and funny phrases provides hours of entertainment"
Each turn a new player will roll a die and then everyone else choose a card from their hand based on the line the dice rolled. The player then chooses the funniest and the truest.
Boxers or Briefs was discontinued by Hasbro in May 2008. Customer Service line said it was "a marketing decision." It was reprinted in 2010.