It’s from the movie Braindead by Peter Jackson, a film he directed before he became famous and won Oscars for including Lord of the Rings, etc.
It’s a zombie baby sitting in a blender, of course, the film so reluctant hero Lionel hesitates to start the blender. Whether it’s zombie child or not you should never put babies in a blender. Anyways unless a Zombie Baby sitting in a blender spewing rotten zombie puke in your face. :)
