1. Wasting fuel in a foolish way.
2. Using an excess of fuel for menial tasks.
3. Doing something that results in the wasting of fuel.
Nate's fuelish, he forgot his ski boots and we had to drive all the way back down the mountain.
I drove all the way down to the Walmart, and they were all outta condoms! So fuelish, shoulda gone to Target!
Dave rented a gas-powered leafblower right after he bought a rake.
Owning something that takes way to much gas to run such as an SUV or a bus.
Gary bought the biggest car he could find, that was fuelish.