I was able to play the Stumble video and saw the Metacafe logo, then did a search there. I wasn't able to find it by doing a Google search.
Since they obscure the host URL, I'm not sure how else one would find it.
(...)
Ah, I see that right clicking on the video gives a menu with "Send to Friend" that puts the URL in an e-mail message. In this case it is:
[link|http://www.metacafe.com/w/501379|http://www.metacafe.com/w/501379]
LSNED!
Cheers,
Scott.