Our Christmas games have ranged from the mindlessly excellent (Pass the Bomb) to the dreadful (Trivial Pursuit - Millennium edition), and this unquestionably fits in the former category. As a post-dinner cause of argument, shouting, cheating and invention of words (animal beginning with N - 'Nelephant') it is challenged only by classic games like cheat.
My own tactic of thinking of a few words, saying nothing and hanging on until I thought we were within a reasonable time of the buzzer going off was correctly denounced as excessively competitive and close to cheating. A mixture of cabernet sauvignon and low tactical cunning was sufficient to win!
On recommendation for the makers, everyone in my family now calls this 'The Shouting Game' which seems a much better and more accurate assessment of how it is played.
Recommended!