faff around vs lallygag

faff around

verb
  • To waste time; spend time idly. 

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 faff around and lallygag occurred in a corpus of books? (source: Google Ngram Viewer )