sneak·er /ˈsnikɚ/
  鬼鬼祟祟做事的人,卑鄙者,運動鞋
  Sneak·er n.
  1. One who sneaks.
  2. A vessel of drink. [Prov. Eng.]
     A sneaker of five gallons.   --Spectator.
  3. A type of soft shoe with a flat, pliable, typically rubber or other soft sole, and canvas-like upper, used in sports such as tennis, or for comfort.  Called sneaker because they give no warning of one's approach.  Usually used in the pl.
  4.  A punch bowl. [Obs.]
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  sneaker
       n 1: a canvas shoe with a pliable rubber sole [syn: gym shoe, tennis
            shoe]
       2: someone acting as an informer or decoy for the police [syn:
          fink, snitch, snitcher, stoolpigeon, stoolie, sneak,
           canary]