Schism-shop means: Schism-shop is an obsolete and derogatory British slang term, now purely historical, for a Nonconformist or Dissenter meetinghouse - a place of Protestant worship outside the Church of England. The. The word is mostly archaic or historical; you will only encounter it in old texts, period drama, or school history rather than current teen conversation. It is generally derogatory or offensive; worth a quiet word about how it lands on the person being described. As a place or proper-name reference it is purely descriptive.