4. Hidden meanings
When you begin this game make sure that each of your guests has a pen and a piece of paper. Give them a dictionary and ask to find some uncommon words which have unclear definitions.
They write down the right definitions and make up some others. After all the players read out their words and definitions one by one.
Other people should guess which of the definitions is the correct. It would be a nice idea to award the winner of the game with some prize.