What's a Nor'easter?

We decided to have a little holiday for Gabbie's birthday and headed to the beach. It just so happens that a Nor'easter parked itself there at the same time. The weather was bad enough that the Weather Channel people where there covering how bad it was. They were out on the beach, in all their rain gear flapping all over the place, showing how strong the wind was and how big the waves were. It was no big deal for us. Our hotel had an indoor pool.