Happy 4/20, smokers. In honor of the annual day of getting high, 2 Chainz, one of rap's most famous baller stoners, takes a hit from the world's most expensive bong.

The rapper visited a weed store in Los Angeles as part of his "World's Most Expensive S---" series with GQ. The so-called "casual smoker" took a hit from the pricey bong (made of German glass), which costs a whopping $10,000.

So what did Chainz think of the "Picasso of bongs”? "It looks like a rocket launcher," he says, shocked by the humongous contraption. "It's the end of the world when you hit that motherf---er."

This isn't the first time the artist formerly known as Tity Boi took a pricey toke of the marijuana smoke. Last month, he puffed on the world's most expensive joint, which was rolled in 24-karat gold edible rolling paper.

2 Chainz has been enjoying the high life as part of the ongoing series. He's tasted $100,000 water with Diplo and petted a $100,000 dog.

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