1. 
2. 
[syn: close call, close shave, squeak, squeaker, narrow escape]
The Collaborative International Dictionary of English v.0.48:
Squeaker \Squeak"er\ (-[~e]r), n.
   1. One who, or that which, squeaks.
      [1913 Webster]
   2. (Zool.) The Australian gray crow shrike (Strepera
      anaphonesis); -- so called from its note.
      [1913 Webster]
   3.
      (a) A contest won by a small margin.
      (b) A narrow escape from harm. [Colloq.]
          [PJC]
WordNet (r) 3.0 (2006):
squeaker
    n 1: any artifact that makes a squeaking sound when used; "those
         sneakers are squeakers"; "which hinge is the squeaker?"
    2: something achieved (or escaped) by a narrow margin [syn:
       close call, close shave, squeak, squeaker, narrow
       escape]