not long vs sawed-off

not long

adv
  • Used other than figuratively or idiomatically: see not, long. 

  • Fairly recently. 

sawed-off

noun
  • A shotgun with a barrel and sometimes buttstock which have been shortened by sawing them off; a sawed-off shotgun. 

adj
  • Shortened by sawing. 

  • Short (as though something that should be there isn't). 

How often have the words not long and sawed-off occurred in a corpus of books? (source: Google Ngram Viewer )