knacked vs shagged

knacked

adj
  • Very tired; knackered. 

shagged

adj
  • Extremely tired. 

  • Of hair: long; rough; shaggy. 

  • Having or covered with shaggy hair. 

  • Covered with scrub, trees, or rough or shaggy growth. 

  • Jagged; having a rough, uneven surface. 

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