In Greyhound (2020), Eagle gives her ship status report:
We have a five-degree list at starboard, and we're down at the stern, but we'll tow all right up to five knots. We have a flap of plate sticking up, scooping in the sea. The list gets worse if we make any speed.
What does "scooping in" mean? I know "scoop up" means but "scoop in" is different.