Parsing xkcd

Here's the text from today's xkcd:

DENSITY

SUP DAWG, I HERD U DIDN'T 
LIEK FORMING BABBY, BUT I 
ACCIDENTALLY IN YOUR BASE.

CONS: RUINED LIFE
PROS: SENTENCE SET THE NEW
      MEME DENSITY RECORD.

If only I had asked 4chan for ideas for what I should do to prevent this!

Ready to take a trip?

First, innoculate yourself with a heavy dose of dull and boring as only Wikipedia can deliver: MEME

OK, now it's safe to travel: SUP DAWG, I HERD

This is LIEK

Let's jump ahead: FORMING BABBY

Now this: I ACCIDENTALLY

And this: IN YOUR BASE

Tired of travelling? Want some home cooking? Want to hear English spoken? Here you go: With 'LOLcats' Internet Fad, Anyone Can Get In on the Joke.

Finally, from the xkcd mouseover text: 4chan