I hate online videos that are lame.
This one's not lame. It's creepy as hell. WTF is this stuff? Here's the writeup on it, from Gawker:
The North Carolina Poop-Monster!
Summer's here. That means monster season. What creatures do lurk in the darkest sewer pipes of the Tar Heel State? Some disgusting, pulsating, alien blob creatures do.
No idea what these things are, but you certainly shouldn't watch this video until you've fully digested your breakfast. This video is allegedly from a sewer snake cam in North Carolina. This is exactly what flamethrowers were invented for.