Okay, I've seen this done before and it sounds fun enough.
The first person puts down a word, the second person takes the last letter of that word and puts down a new word with that letter as first letter.
Really simple, really straight forward, but let's see how long we can keep this going for. If you come up with a really hard to find word, why not put a short def? And if the next person didn't know that word, he or she can deem it "Cookie Worthy!"
Sounds simple enough? Maybe I'll add a twist now and then... Okay, let's go.
Lintel: The top section of a fireplace