Definition from Wiktionary, the free dictionary
- (humorous) So evident that it goes without saying, and is thus superfluous.
- In "Basil the Rat", an episode of BBC TV sitcom Fawlty Towers, the proprietors wife points out that keeping a rat within the hotel is inadvisable, due to health concerns. Basil responds, "Can't we get you on Mastermind, Sybil? Next contestant - Sybil Fawlty from Torquay. Special subject - the bleedin' obvious."