Let's Talk: Roleplaying

If you came here looking for tips on how to make life in the bedroom spicier, I'm sorry to disappoint you.

Recently I tried (admittedly poorly) to explain to someone that I spend my Sundays with a group of my friends playing games.  It just happens that these friends of mine are currently scattered across the country so we have to use a website that everybody logs in to in order to play the games together.  Also, the games are roleplaying games, known to many as "those games played by nerds involving funny dice."  Maybe you saw it on old episodes of Freaks and Geeks (yes, that is James Franco) or multiple episodes of The Big Bang Theory (yes, that is the cast of The Big Bang Theory).  Personally, I loved the episodes of Community that dealt with roleplaying, but that's just my preference.

But how do you explain to someone who has no idea what you're talking about what you do without sounding insane?  "We sit around and play make-believe" really doesn't sound that much better than "we roll dice to try to defeat monsters."