knock·about /ˈnɑkəˌbaʊt/
 (a.)亂打的,諠囂的,放蕩性的吵吵鬧鬧的武打,一種小型帆船


 Knock·a·bout n.
 1. Naut. A small yacht, generally from fifteen to twenty-five feet in length, having a mainsail and a jib; a sloop with a simplified rig and no bowsprit.  All knockabouts have ballast and either a keel or centerboard.  The original type was twenty-one feet in length.  The next larger type is called a raceabout.
 2. A knockabout performer or performance. [Theat. Slang]
 3. A man hired on a sheep station to do odd jobs. [Colloq., Australia]

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 knock·a·bout a.
 1. Marked by knocking about or roughness.
 2.  Of noisy and violent character; marked by farce, pratfalls, and horseplay; as, knockabout comedy. [Theat. Slang]
 Syn: -- boisterous, slapstick.
 3.  Characterized by, or suitable for, knocking about, or traveling or wandering hither and thither; suitable for use in rough activity; suited for everyday use; -- used especially of  clothing.
 Syn: -- casual, everyday.
 4.  That does odd jobs; -- said of a class of hands or laborers on a sheep station. [Collog., Australia]

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 knockabout
      adj 1: full of rough and exuberant animal spirits; "boisterous
             practical jokes"; "knockabout comedy" [syn: boisterous]
      2: suitable for rough use; "a knockabout overcoat"; "a
         knockabout old car"
      n : a sloop with a simplified rig and no bowsprit