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Use "half-pipes" in a sentence
"To most, skateboarding is a sport featuring half-pipes and high-flying riders performing daredevil tricks."
"The half-pipes and jumps on this beast are where local pros like Olympian Shaun White -- and your moody 15-year-old -- can throw down some serious fun."
"And I lectured them about Congreves - it was remarkable how well I remembered each detail about assembling the firing-frame and half-pipes, and adjusting the range-screws and everything; the excellent fellows took it all in, spitting and exclaiming with excitement, and you could see that even if they weren't the kind to get elected to the Royal Society for their mechanical aptitude, their hearts were in the right place."