Linguistic Note on Ton
The word ton derives from the same source as the word tun or tunne, a cask hold $216$ gallons of wine.
The word ton is pronounced tun.
In colloquial language, the word ton is in common use as a rhetorical flourish for a weight too heavy to be easily managed, for example:
- This suitcase weighs a ton!
It is also motoring slang, at least in Britain, for $100$ miles per hour:
- Took the beamer up to a ton going up the M6 last night, good job there weren't no fuzz around.
The usage is commonly seen as doing the ton, meaning driving at $100$ miles per hour.