Idiom: Running on Fumes
Nancy: How long until we reach the hotel?
Jason: About 50 miles. Why?
Nancy: I was hoping we wouldn't have to stop before arriving, but we need to stop for gas at the next station. We've been running on fumes for a few miles and I don't want to push the car in the dark!
Jason: Neither do I! The GPS says there's a gas station one mile ahead.
Student life is so hard! This week, I had to write a 10-page paper in my sociology class and I have a midterm on Friday in my economics class. Between my part-time job, writing, and studying for the test, I'm running on fumes! I don't think I'll have enough energy to enjoy the weekend.
Meaning: The expression running on fumes can be used to describe a vehicle/person with no fuel/energy left, but somehow they keep on going.