the GNU version of the Collaborative International Dictionary of English
n. An immoderate drinker.
The Century Dictionary and Cyclopedia
n. One who guzzles; an immoderate drinker.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a drinker who swallows large amounts greedily
n. someone who drinks heavily (especially alcoholic beverages)
Word Usage
"Tooling about town in a gas guzzler is obviously bad for the environment, but online car rental broker Vroom Vroom Vroom wants you to know that surfing the Web is also destroying the planet."