but·ter·ball /ˈbʌtɚ/
小鳥的一種;胖子
But·ter·ball n. Zool.
1. The buffel duck.
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butterball
n 1: a rotund individual [syn: fatso, fatty, fat person, roly-poly]
[ant: thin person]
2: small North American diving duck; males have bushy head
plumage [syn: bufflehead, dipper, Bucephela albeola]