DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   knack
       n 1: a special way of doing something; "he had a bent for it";
            "he had a special knack for getting into trouble"; "he
            couldn't get the hang of it" [syn: bent, knack, hang]