guzzler

/ˈɡʌzlər/
noun
  1. A person or thing that consumes something greedily or in large amounts, especially fuel.
    • He's a guzzler when it comes to orange juice—he finishes a carton in one sitting.
    • That air conditioner is an energy guzzler; we need a more efficient one.
    • His old car is a real gas guzzler.
Antonyms
What does "guzzler" mean? | whatsthatwordmean | whatsthatwordmean