goody-goody vs louse

goody-goody

noun
  • A well-behaved person with no obvious human failings, with the possible exception of smugness and self-satisfaction. 

adj
  • Mawkishly good; weakly benevolent or pious. 

louse

verb
  • To remove lice from; to delouse. 

noun
  • A small parasitic wingless insect of the order Psocodea. 

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