President Obama has a new shorthand to belittle Republican rival Mitt Romney’s economic plan.

Speaking to supporters here Monday, Obama ripped Romney’s proposed tax plan, which, the president said, would provide a tax cut for the richest 2 percent of Americans — and pay for it by raising taxes on the middle class.

“It’s like Robin Hood in reverse,” Obama said. “It’s Romney Hood.”

The line drew applause and laughs from the crowd, which had paid $500 and up at the first of two fundraisers for Obama in Connecticut.

The dig was the latest effort by Obama to appeal to the middle class by painting Romney’s economic philosophy as catering to wealthier Americans.

The presumptive GOP nominee and his Republican allies, Obama said, believe that if they “give more tax breaks to some of the wealthiest Americans. . . then somehow prosperity will rain down on everybody. That’s their theory, where they will take us if they win.”

Romney campaign spokesman Ryan Williams responded in a written statement that Obama has “used taxpayer dollars to grow government and reward his donors, middle-class Americans have seen fewer jobs, lower incomes, and less hope for the future.”

Obama, whose campaign was outraised by Romney’s campaign for the third month in a row in July, said that the Republicans will pour money into ads blaming the bad economy on the president.

“Their economic theory won’t sell, so their ads say the same things over and over: The economy’s not doing well and it’s all Obama’s fault,” Obama said. “That may be a plan to win an election but that’s not a plan to create jobs, to grow the economy or provide for the middle class. They don’t have that plan. I do.”