slank means A depression, a low place in the ground, especially one at the side of a river, lake, or cove which is filled with water during freshet(s). Lexicurio rates it Sui generis — a strength score of 91 out of 100.
noun
- A depression, a low place in the ground, especially one at the side of a river, lake, or cove which is filled with water during freshet(s).“[…] The board of health had prohibited the sale of ice cut from the "slank," because water in the "slank" was said to be polluted. The ice dealers, however, contend that the city of Patterson has no right to pollute the river and thus hurt their business, […] stopping the sale of "slank" ice, […]”