Curiosity prompted me.

I don’t have 23 posts on LJ, so I went to Innuendo (http://weblog.foolish-house.com/)- my weblog.

23 posts in and 5 lines down:

“Take one of these, dude… you’re all screwed up. I can hear your knuckles cracking over the music.”

So, true to meme form:
1.Go into your LJ’s archives.
2.Find your 23rd post (or closest to).
3.Find the fifth sentence (or closest to).
4.Post the text of the sentence in your blog along with these instructions.