A doctoral thesis resulting from fraud (typically plagiarism or ghostwriting) as opposed to one based on genuine scholarship. Smells foul only after being exposed but then sticks to the author for life. Exposure usually leads to the revoking of the doctoral degree.
A Piece of ScHmITt (see related entry) constitutes a subtype with a high potential to attract media exposure, although it accounts for only a small portion of all doctoral feces produced.
Not long after our professors started using plagiarism detector software retroactively, they realized doctoral feces are piling up in our faculty library.