It's a family-friendly partygame where players earn points by getting their teammates to guess words and phrases. The catch is that the "Neanderthal Poets" are only allowed to use single syllable words. If they use any words with more than one syllable, the other team gets to bop them with a 2-foot inflattable club. The team with the most points wins!
The game contains 200 cards, 1 sand timer, 2 game boards, Grok's poetry journal cards and 1 inflatable club. And of course hilarious illustrations by Matthew Inman of The Oatmeal.