"Fastidious" means "excessively particular, critical, or demanding." You said you were fanatical about the Far Side, so I took a little leap, and misspelled it on purpose. Just being silly.
Now that I think about it, it wasn't all that funny.
Sorry, I should have been more clear in my response. When I said that I don't get that one, I meant that I don't get called that name, not that i didn't get your clever play on the name. I got that part, which is why i said that i liked it. It was funny. My bad