1. A vehicle (typically an SUV) that consumes a large amount of gas.
2. An individual driving a guzzler.
1. "Dude, stop whining about gas prices and trade in your guzzler for a Prius."
2. "I was just about to grab a killer parking space, when some guzzler with a 'Palin for President' bumper sticker stole it fom me."
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