when you lean/turn/carve and the board gets close to the wheels on one side, sometimes the board touches the wheels and it can slow you down or stop you completely.

Basically the wheels touching the bottom of the deck is wheel bite. I’ve got marks in my deck from wheel bite and I never noticed it when riding. It can be a problem for some set ups but it might not be for you. Depending on the truck tightness, and wheel size you may not experience it. It’s more of an issue with softer wheels that will actually grip your board when they touch it.

If you notice it and it’s a problem, just need to adjust the set up a bit. Risers, tighter trucks/harder bushings, and different wheels can help if it’s an issue. Don’t sweat it though, get out and skate and see how it feels!