DuckCorp Dico

Found 2 definitions

1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   flat foot \flat" foot`\, flatfoot \flat"foot`\ (Med.)
      A foot in which the arch of the instep is flattened so that
      the entire sole of the foot rests upon the ground; also, the
      deformity, usually congential, exhibited by such a foot;
      splayfoot.
      [1913 Webster]
   
                   
                 

2.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   flatfoot \flat"foot`\ n.
      a police officer, especially a foot patrolman. [slang]
      [PJC]