Rita had returned and Harrigan was knee-deep in paper work, smiling as usual, but looking as if his heart wasn't in it. ita Angeltoni was the sloppiest woman Dean had ever known.
Water that is knee-deep can rapidly become chin high, or higher.
You were just belly-aching, crying poor-mouth that we were knee deep in a slow period.
Dean was knee-deep in a dream, trying to pull his Visa card away from Jeffrey Byrne, who was sitting on a cloud playing a harp, when his bedroom was suddenly filled with light.
When Dean returned to Collingswood Avenue, Fred was knee-deep in either his notes or another mystery novel, Dean didn't notice which.