Ambridge (n.)
Indecisiveness brought on by a lack of concern for the actual outcome.
Borchester (n.)
The peculiar form of bloated heartburn engendered by eating too many potatoes too quickly.
Felpersham (n.)
The feeling you get on realising that the driver of the car that you are travelling in is an Archers addict, and the time is swiftly approaching 7PM.