"Escape goat" was said on-air in 2002 by UK Big Brother reality show contestent Jade Goody. Scorned by millions, usage picked up, and now it's widely said, by some knowingly aware of the joke, but others unknowingly. The mistake vaguely makes sense because people looking for a "scapegoat" are trying to "escape" blame.
"They were trying to use me as an escape goat," said Jade.
Uncle Sugar is a combination of Uncle Sam & Sugar Daddy, combined to refer to the generosity of the United States federal government in bestowing money and benefits on citizens. The usage of the term was reported widely when Mike Huckabee said it during a prominent meeting in January 2014, and his comments received widespread condemnation.
"And if the Democrats want to insult the women of America by making them believe that they are helpless without Uncle Sugar coming in and providing for them a prescription each month for birth control because they cannot control their libido or their reproductive system without the help of the government, then so be it, let us take that discussion all across America because women are far more than the Democrats have played them to be." - Mike Huckabee, speaking at the Republican National Committee winter meeting, January 23, 2014.