mud duck
n.β Β«Kohn said the state’s own witnesses agree Vang was called a βtree ratβ and a βmud duck,β which Kohn said was a derogatory term for a person of color.Β» ββCase against hunter opens” by Ed Culhane in Hayward Post-Crescent (Appleton-Fox Cities, Wisc.) Sept. 11, 2005. (source: Double-Tongued Dictionary)