loon

loon1
noun
  1. (informal)a silly or foolish person
    (非正式)傻瓜
语源
  1. late 19th cent.: from loon (referring to the bird's actions when escaping from danger), perhaps influenced by loony

loon2
noun
  1. North American term for diver (in sense 2)
    (北美)。 同 diver (义项2)
语源
  1. mid 17th cent.: probably by alteration of Shetland dialect loom, denoting especially a guillemot or a diver, from Old Norse

loon3
verb
  1. [no obj., with adverbial](Brit. informal)act in a foolish or desultory way
    (英,非正式)干傻事
    he decided to loon around London.
    他决定在伦敦干点儿傻事。
语源
  1. 1960s: of unknown origin
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