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1.
1. The act of blaming someone else for your own mistakes.

2. Refusing to take responsibility for anything BAD while always taking credit for anything GOOD.

Greenspanning was pioneered by Alan Greenspan, the former head of the U.S. Federal Reserve System, who has spent the last 5 years denying any responsibility for the housing bubble or subsequent economic collapse -- despite enormous evidence to the contrary.
"Did he ever admit his mistakes."

"No way, man. He's Greenspanning again."

"Typical."
by Peter Kobs April 07, 2010