I had to call a shrink to get my head around the new Tumblr blog, Rich Kids of Instagram.

David Reiss, ... walked me through the website, where exhibitionist brats post photos of themselves in yachts, mansions, Ferraris, Bentleys, helicopters and jets.

The site has garnered a lot of headlines since its July 13 launch. It shows kids clubbing with $4,000 bottles of champagne, images of their $43,000 bar tabs and loving photos of their American Express Centurion cards.

“They have more money than you,” the site boasts, “and this is what they do.”

“There’s no cleverness,” Reiss said. “There isn’t even a sense of humor, really. ... It’s narcissism without boundaries. ... And there is a very dark underside to all of this.”

Many Americans believe class warfare is about the poor chiding the rich. At Rich Kids of Instagram, it’s the other way around.

One photo shows a young man with a fine horse in a well-appointed stable: “Do you have a horse in your backyard? Didn’t think so.”