plot generator
fictional plot device which permits the generation of plots for an extended serial without requiring a great deal of logical connection between the episodes
en-US/ˈplɑt ˈd͡ʒɛnɚˌeɪtɚ/
en-GB/ˈplɒt ˈd͡ʒɛnəɹeɪtə/
fictional plot device which permits the generation of plots for an extended serial without requiring a great deal of logical connection between the episodes