Rob Kardashian's Fat Camp Tweet -- I Know I'm Fat, Stupid

Rob Kardashian says he's a fully grown man and doesn't need blogs to tell him he's fat.

Rob is scoffing at reports that he checked into fat camp and rehab to lose the lbs. He tweeted, "Then why am i still fat u fools??"

This photo of Rob leaving LAX for Kim's wedding in Paris Sunday triggered all the hubbub. He says, "I don't believe in rehab or therapy or anything of that sort."

As for losing the weight, he says, "I'm a grown man and will work on myself when i choose," adding, "I'm aware that I'm fat that def aint a surprise to me lol and my only therapy will be in the gym ..."

You got it, dumbbells?