Piste

[Sarah]

The track or tread a horseman makes upon the ground he goesover. Johnson.

[Sarah]

A human made run or trail for snowboarding/skiing and similar sports. Marked with signs showing a colored shape to signify difficulty level of the particular piste. The french word for trail. Ant: Back-country.

[Sarah]

Piste: A mountain run or trail for skiing/snowboarding. It is the French word for trail. Difficulty is usually marked by signs with shapes and colors: green circle is slow and easy terrain, double black diamond is very steep and rough terrain.
Antonym: Backcountry

[Sarah]

to plough someone, hard, just a snow machine would and completely flatten their insides and inner organs

[Dianne]

A ski run of compacted snow.