War Driving

Squatting or claim jumping if you mean stealing.

There was a lot of claim jumping during the Gold Rush. The fights had to do with who owned a working claim.

There is no onomatopoeia for "jumping". Jumping is a verb.

Either it is claim tailings mercury hydraulic clipper jumping shaft pyrite diggings. or R.L.

The term "kangaroo court", surprisingly did not originate in Australia. The most plausible explanation for the phrase seems to have come from the Californian goldfields, and became a reference to the trial given to people accused of "claim jumping". Because claim jumping was a crime of disloyalty, people often decided the outcome of the trial before the accused was even sentenced, so the whole court proceeding became a sham - which came to be known as a "kangaroo court".