Can anybody explain what exactly a "sardine box" is ?
Here are a few usage examples:
"sardine boxes take us from here to there"
"the motorized sardine box"
It obviously refers to a vehicle, but how does it look like ?
(US) a small car.
- (1920) Eve. Capital News (Boise, ID) 4 Jan. 33/1: ‘Some sardine can you’re driving, Jeff’.
The idea is that of a small space stacked with things or people like in:
be packed (in) like sardines:
To be very tightly or snugly packed together, especially in a small space.
- We didn't want to take more than one car, so we had to be packed like sardines in Jeff's little sedan for the four-hour drive to Moab.
(MacGraw-Hill Dictionary of American Idioms and Phrasal Verbs.)