zorbing
/ˈzɔːbɪŋ/noun
mass noun
- a sport in which a participant is secured inside an inner capsule in a large, transparent ball which is then rolled along the ground or down hills滚人球（一项体育运动, 参加者被固定在一透明大球的内舱中, 然后使球在地面上滚动或滚下山坡）。
词源
1990s: invented word from zorb (the name of the ball used in this activity) + -ING1 .