What we kids called "bouldering" growing up in the deserts of eastern WA was bit different than the reference today.
It too was an activity, which consisted of rolling the largest boulder we could find onto the roadway, and concealing it beneath a giant tumbleweed. Then, hiding nearby, we would watch as the unsuspecting motorist was launched into orbit.
Many oilpans were sheared, but thankfully no one was ever injured or killed. We were rotten little bastards indeed, but I still get a chuckle when I think of the bewildered drivers trying to chase us down when they heard our cries of joy and laughter upon a successfully completed mission.
Old skool Jackass I guess.