Ectoplasm refers to a substance believed to come from the bodies of some supernatural beings, like ghosts or spirits. It's often described as a transparent or malleable substance that can be seen or felt during spiritual activities. Full definition
Then there's the new kid on the block, Johann Strauss [voiced by Seth McFarlane], a Teutonic being of ectoplasm housed in an encounter suit that resembles the old spider - Man villain, Mysterio. (eclipsemagazine.com)
Visual detritus litters Jonze's shots: A chucked can from a speeding car bounces off Malkovich's head, the culprit recognizing Malkovich in time enough to call him out by name, though why John Malkovich poorly disguised in a ball cap and covered in ectoplasm would be on the side of the road in Jersey is anyone's guess; a documentary features Brad Pitt briefly only to ignore him; an alternate universe Charlie Sheen embraces his receding hairline. (pastemagazine.com)
But the gooey reanimation of Nix is a symphony of pulsating ectoplasm like Frank in Hellraiser. (rottentomatoes.com)