Bullseye - Cooperative Party Game by 25th Century Games

About Bullseye, from BoardGameGeek:

Bullseye is played in rounds, and in each round, players give clues about a word or phrase that will be guessed by the archer. Each clue is written one letter at a time. The twist is that before you add another letter to the clue, everyone passes their clue clockwise, which means you now have to add a letter to your teammate's clue instead of your own. This means that not only does the archer need to guess the word or phrase based on partial clues, but you need to intuit which clues your teammates started so that you can continue them. Bullseye is a game that keeps everybody guessing! -description from the publisher