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An atrociously performed dance, usually done when one is incredibly drunk or held at gunpoint. Also can be used in exclamation at something bizarre or just plain stupid. The g and f can be alternated to form fabbering gabberwaltz.
*As a man dressed as Chubacca comes ploughing down the sidewalk armed with a spatula and singing Jerusalem*

"What the gabbering fabberwaltz is that?!"
by Master of Contradictions September 24, 2007