Noun
English Wikipedia has an article on:diploma millWikipedia
diploma mill (plural diploma mills)
(education, derogatory) A disreputable university, churning out diplomas to unqualified students.
D” from Columbia Pacific University which was closed down in March 2001 by the California Attorney General’s Office because he called it a diploma mill and a phony operation offering totally worthless degrees! Source: Internet
It’s also a model that, by its very nature, invites abuse by predatory and deceptive publishers offering unwary (or unscrupulous) authors the publishing equivalent of a diploma mill for their articles. Source: Internet