Rob Kardashian is ''furious'' with Kim Kardashian West.

The 28-year-old sock designer is said to be fuming that his 34-year-old sister claimed he does nothing but ''smoke weed'' and hang out with friends.

A source told Us Weekly magazine: ''Rob and Kim had been cool again and were getting along. Now he's furious at her again for her comments to Rolling Stone. He was been bitching her out on her phone. He's mad - p****d as hell ...

''Rob has blocked Kim on his phone. He doesn't want to hear what she has to say. He says there's no excuse she could possibly have for saying that. He will not forgive her.''

During her revealing interview with the publication, the 'Keeping Up With The Kardashians' star was asked about her ''mysterious'' brother, who has gained a lot of weight and is said to be battling depression.

She said: ''It's not that mysterious, what's happening with Rob. He has gained weight. He feels uncomfortable being on the show, and that's OK. Do I think he smokes weed, drinks beer, hangs out and plays video games with his friends all day long? Yes.''

When asked if ''it's not more like hookers and meth at the Ritz,'' she added: ''No no. Or he'd be skinny.''