The musician was commenting on the size of the reality star's bum when he came out with the rather hilarious comparison
It's been compared to the moon, a centaur and everything else under the sun, but now Foo Fighters frontman Dave Grohl has described Kim Kardashian's bum as two space hoppers.
Wow.
The singer was chatting about Kim's recent photos in Paper Magazine, featuring her oiled naked body in all its glory, when he admitted he thought her behind was "unreasonable" and said it reminded him of an inflatable child's Hippity Hop, also known as a space hopper.
He sad on BBC Radio 1 today: "I used to have this thing when I was a kid called a Hippity Hop.
"It's like this big inflatable thing with handles and you just bounce around your yard, it's kind of like a Hippity Hop. It's actually two Hippity Hops!"
The singer also admitted he struggles to see how the raven-haired beauty sits down every day due to the size of her posterior.
He said: "It's the biggest, most unreasonable butt you've ever seen in your life. I don't know how she can sit down?"
He's not the first to show a humorous reaction to the snap - see more comparisons from Twitter here.
The 45-year-old rocker - who has three daughters, Violet Maye, eight, Harper Willow, five and three-month-old Ophelia Saint with his wife, Jordyn Blum - also recalled an experience when he bumped into the Keeping Up With the Kardashians star, confessing he was mesmerised by her behind.
Speaking on Radio 1, he recalled: "There was once when I was taking my kids to their ballet class and she was at some crazy gym that was next door.
"It was one of those military gyms which was like, 'I want to make your ass huge!' and she walked by and it is like an optical illusion."
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