A last drink before going home.
There is some dispute about the origin of this phrase, but a popular (although unproven) explanation is the journey from Newgate Prison to Tyburn (around the site of what is now Marble Arch tube station). The story goes that condemned prisoners were allows a drink at an inn or tavern along their route.
This was their ‘one for the road’.
The legend further goes that one of the guards accompanying the prisoner was not allowed to go into the ale house and had to stay to mind the cart.
This guard was said to be ‘on the waggon’ and thus not allowed to drink, allegedly providing another modern saying.
Johnny Mercer used the phrase in the lyrics of his song One for My Baby (and One More for the Road) – written in 1943 for Fred Astaire. Since then it has proved popular as a title. It was used in 1984 for a Harold Pinter play, a Stephen King short story, a dodgy British film (2004) and a British television series, starring Alan Davies. It has also provided the title for albums by The Kinks (1980), April Wine (1984), Trouble (1994) and Ocean Colour Scene (2004).
The Australians, have modified the phrase to ‘one more for the bitumen’ and a good friend has (allegedly) translated it into Japanese – ‘ossimoto’ – if a friend raises a glass to me and say’s ‘ossimoto’ then a final drink is definitely on the cards!