I'm trying to spread the word, but I don't know exactly how to give someone new the best possible idea of what the site is about.
Bombcast Excerpts are a pretty good way to give somebody a lot of bite sized pieces of goodness, particularly if they are animated.
Very true. When it comes to games that my friends and I are interested in, I'll pull up a QL if I can. For just the "vibes" of the crew, I'll pull up a funny animated Bombcast excerpt video. No animation is ok, but from my experience, since the person doesn't know who they are or what's about to be "the joke", they have short attention spans and might lose interest.
It's a personality-driven video game news/reviews site with a heavy focus on video content and an expansive wiki. Introducing them to the site through in-jokes or memes only long-time visitors would understand or care about is not the way to go.
When they're interested in a game, but haven't bought it (yet), show them the QL of that game. It will prove to be a valuable resource instantly, and they will come back to the site for more QL's. Then, slowly overtime, they will get way deep into the site all on their own. That's what happened to me, at least.