We played this today at work
Bull$hit Bingo
The players write down management-nonsense word like "Out-of-the-box-thinking", "Synergy", "Content streamlining" etc. in a 5 by 5 square bingo card. If a word or phrase is used during the meeting you check the box. When you get a five box line (horizontally, vertically or diagonally ) you shout "BULL****!" and win.
btw. this was not a client meeting, just an internal agency "brainstorming" before a big presentation to the client. 12 creatives including me, played the game just to get the account people to stop using so many meaningless words. It got their attention and everyone had a good time.