DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   turnoff
       n 1: something causing antagonism or loss of interest [syn:
            turnoff, negative stimulation]
       2: a side road where you can turn off; "I missed the turnoff and
          went 15 miles out of my way"