blow off vs lallygag

blow off

verb
  • To shirk or disregard (a duty or person). 

  • To forcibly disconnect something by use of a firearm or explosive device. 

  • To remove something by blowing on it. 

  • To vent, usually, to reduce pressure in a container. 

  • To let steam escape through a passage provided for the purpose. 

  • To pass gas; to break wind, to fart. 

lallygag

verb
  • To dawdle; to be lazy or idle; to avoid necessary work or effort. 

noun
  • Horseplay, fooling around. 

  • A layabout, one who lallygags. 

How often have the words blow off and lallygag occurred in a corpus of books? (source: Google Ngram Viewer )