This is a rotational state in which the pelvis and torso face towards the inside of the turn.  During a left turn, the pelvis and torso would be facing left of the direction the skis are pointing.   It's a body position most commonly seen at the start of the turn, when a skier faces downhill as they enter the new turn, because they chose to not eliminate the prior turn's counter during the transition.  It can also be used to exert a bit of extra pressure to the front of the ski, to sharpen the turn without having to increase edge angle.

Start of turn rotation because of keeping counter from previous turn

Using rotation to add tip pressure and sharpen the turn