from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A B-movie, often in camp style and with a retro theme.
- n. A low-budget film which has become a cult classic, referring in this sense to original tradition of showing such films at night.
- n. A low-budget film shown on television after midnight, particularly but not exclusively in the US.
Originating in 1950s United States television, the term has undergone several changes over time (see Wikipedia article). (Wiktionary)