Anyone have any alternatives to “Pizza” and “French Fries”?

All children are learning to ski, my youngest daughter (Genipher) told me that her ski instructor taught her to do “Pizza” and “French Fries”. I have no idea what she could be referring to, but both pizza and French Fries are incredibly unhealthy, which seems counterintuitive as Skiing is the healthiest sport there is? Does anyone know what they terms mean and if there are any healthy alternatives (“Carrots” and “Watermelon”?)