What is "schussing"

Usage examples of "schussing".

And now the waves were picking up, so that they spent many long seconds shooting up the side of one, then almost as many schussing down into the trough of the next one.

But when she touched down at White Mountain Airport she found bright sunshine, fresh powder, and a throng of like-minded ski nuts overflowing the resort town, all determined to await Gabriel's trump schussing their brains out.

Away from the club house, to which only a thin trickle of smart-looking people were making their way, he got into the usual mountain-top crowd - people swarming out of the cable-head, skiers wobbling or schussing down the easy nursery slopes on the plateau, little groups marshalled under individual teachers and guides from the valley.