Call my bluff!
Try this fun bluffing game with friends--all you need is a dictionary and paper. A team of three goes to a different room and finds an obscure word in the dictionary that others are unlikely to know. They come up with two made-up "definitions" that could sound believable. They write down the two fake definitions along with the real one. It's sometimes fun to make one of the fake definitions goofy, just to get a laugh and make the choice a little easier.
Now the team returns to the group, each reading a definition and keeping a straight face so that no one can guess which definition is real. The person in the group who guesses the correct definition gets to lead the next team of bluffers.
Here's an example. Say you pick "pogonip," pronounced "pawg-uh-nip." The actual definition is "a dense winter fog containing frozen particles that is formed in deep mountain valleys of the western U.S." But your team could make up a definition such as "an ancient measuring instrument used by early Bronze Age peoples." And another could be "a jumping device that can prove painful for users."
You can also play this game with the bluffers presenting one fact about a celebrity or historic person, along with two fake facts.