laughing jackass

From The Collaborative International Dictionary of English v.0.48:

Jackass \Jack"ass`\, n. [2d jack + ass.]
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   1. The male ass; a donkey.
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   2. A conceited dolt; a perverse blockhead; -- disparaging and
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   Jackass bark (Naut.), a three-masted vessel, with only the
      foremast square-rigged; a barkentine.

   Jackass deer (Zool.), the koba.

   Jackass hare, Jackass rabbit (Zool.). See Jack rabbit,
      under 2d Jack, n.

   Jackass penguin (Zool.), any species of penguin of the
      genus Spheniscus, of which several are known. One
      species (Spheniscus demersus) inhabits the islands near
      the Cape of Good Hope; another (Spheniscus Magellanicus)
      is found at the Falkland Islands. They make a noise like
      the braying of an ass; -- hence the name.

   Laughing jackass. (Zool.) See under Laughing.
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From The Collaborative International Dictionary of English v.0.48:

Laughing \Laugh"ing\, a. & n.
   from Laugh, v. i.
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   Laughing falcon (Zool.), a South American hawk
      (Herpetotheres cachinnans); -- so called from its notes,
      which resemble a shrill laugh.

   Laughing gas (Chem.), nitrous oxide, also called
      hyponitrous oxide, or protoxide of nitrogen; -- so called
      from the exhilaration and laughing which it sometimes
      produces when inhaled. It has been much used as an
      anaesthetic agent, though now its use is primarily in

   Laughing goose (Zool.), the European white-fronted goose.

   Laughing gull. (Zool.)
   (a) A common European gull (Xema ridibundus); -- called
       also pewit, black cap, red-legged gull, and {sea
   (b) An American gull (Larus atricilla). In summer the head
       is nearly black, the back slate color, and the five outer
       primaries black.

   Laughing hyena (Zool.), the spotted hyena. See Hyena.

   Laughing jackass (Zool.), the great brown kingfisher
      (Dacelo gigas), of Australia; -- called also {giant
      kingfisher}, and gogobera.

   Laughing owl (Zool.), a peculiar owl ({Sceloglaux
      albifacies}) of New Zealand, said to be on the verge of
      extinction. The name alludes to its notes.
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