lallygag vs loafer

lallygag

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

noun
  • Horseplay, fooling around. 

  • A layabout, one who lallygags. 

loafer

verb
  • To loaf around; to be idle. 

noun
  • An idle person. 

  • A wolf, especially a grey or timber wolf. 

  • A shoe with no laces, resembling a moccasin. 

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