A surname from Middle English.

plural of Coote

Any of various aquatic birds of the genus Fulica that are mainly black with a prominent frontal shield on the forehead. / (colloquial) A foolish or eccentric fellow

(slang) Body louse (Pediculus humanus).

plural of coot

(simile) totally bald; without any hair on one's head.

(dated) A scoter.

plural of sea coot

(simile, UK, informal) Ostentatiously homosexual.

A freshwater turtle of the eastern United States of the genus Pseudemys. / The box turtle. / (slang) A redneck.