It HAS been bootlegged to Vimeo.
From 2008, this is the Chowder special Christmas episode "Hey Hey It's Knishmas".
Dana Snyder plays Gazpacho who in turn is playing Knish Kringle:
It's a silly parody of Christmas about a Santa like character who vomits presents for you if you are good (and make a good smingerbread house.)
If you are bad he goes into a terrible rage and destroys your smingerbread house.
Chowder - Hey, Hey It's Knishmas! from CHOWDER on Vimeo.