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someone who gives away information on others for thier own benefit and can't be trusted.
He was the kind of furback that would sell out his own mother.
by katos July 19, 2005
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A slang term for illegal aliens who sneak into the United States from Canada. The term was used by a hispanic judge in 1996 Sliders episode "As Time Goes By" where in an alternate universe the United States was settled by the Spanish so gringo furbacks were coming from Canada instead of wetbacks from Mexico.
The furbacks are trimming my hedges.
by Bill the Cat May 20, 2008
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