to run on fumes
01
to continue functioning despite being extremely tired
![to [run] on fumes definition and meaning](https://cdn.langeek.co/photo/40369/original/?type=jpeg "to [run] on fumes definition and meaning")
Idiom
Informal
例
I'm running on fumes — did n't sleep last night.
02
to operate with almost no fuel left
例
The car was running on fumes by the time we found a gas station.
