Well I haven't heard him cuss in any of his video's but probably only if he's piste off about something or Piste off at someone.

It is a ski map that shows the locations of slopes and trails for downhill skiing, as well as areas that are "off-piste," or ungroomed and therefore possibly dangerous but not restricted. "Piste" is the French word for ski slope.

This only couts in skiing or snowboarding, but the term 'off piste' refers to the snow or area of the mountain which is not marked as an official slope or route in a ski resort. Therefore this could be deeper snow down a different course on a mountain which is not as popular and is not counted as a proper route. On piste is where it is a regular run or route down a mountain in snow sports, which would be marked on a map and have access to for the public. These include green, blue, red and black runs.

Cross-country: Back-country.

Alpine: Off-piste.