Top definition
Claims that a large corporation will make to try to convince you that their company LOVES the environment, and is “green” and “ecofriendly” rather than the gas guzzling, fume spewing hellholes they are.
sucker: "Hey dude, I just read somewhere that Alaska Airlines has green fuel!"

person who reads urban dictionary: "Never trust the Eco-Boast, man"
by hamham127 January 02, 2012
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