inside joke

some friends of mine were discussing an inside joke via e-mail. I didn't know anything about it and they were more or less flaunting my ignorance so as i started to feel left out i began to ask questions that might help enlighten me but before anyone could respond I realized:

Wait, i've lost interest because nothing funny or interesting ever happens if i'm not already involved in it...

p.s. I get that perhaps you're sticking to the theme of the site but only getting a few anonymous comments is less than acceptable.