n. 白骨顶(鸟), 笨人, 傻瓜

[ noun ]
slate-black slow-flying birds somewhat resembling ducks
<noun.animal>

Coot \Coot\ (k[=oo]t), n. [Cf. D. koet, W. cwtair; cwta short,
bodtailed + iar hen; cf. cwtau to dock. Cf. {Cut}.]
1. (Zo["o]l.)
(a) A wading bird with lobate toes, of the genus {Fulica}.
The common European or bald coot is {Fulica atra} (see
under {bald}); the American is {Fulica Americana}.
(b) The surf duck or scoter. In the United States all the
species of ({[OE]demia} are called coots. See
{Scoter}. ``As simple as a coot.'' --Halliwell.

2. A stupid fellow; a simpleton; as, a silly coot. [Colloq.]