Not to be confused with fuzzy logic, which actually exists. According to George W. Bush in the first debate between the 2000 Presidential candidates, this is what Al Gore used over and over again to determine, in his words, that Dubya's tax plan is an attempt to give the U.S. budget surplus back to America's rich instead of "the American people".
Despite Bush's repeated accusations of "fuzzy math", Gore came back again and again with more specific numbers than his opponent could. Bush was clearly attempting to duplicate Ronald Reagan's successful use of "There you go again" during the 1980 debates to make Jimmy Carter look like he didn't know what he was talking about. The problem is that this apparently only works if you are (a) a professional actor, (b) better informed with the facts, and (c) geriatric.