rag rug vs tatter

rag rug

noun
  • A rug made of odd scraps of fabric. 

tatter

noun
  • A shred of torn cloth; an individual item of torn and ragged clothing. 

  • A person engaged in tatting. 

verb
  • To fall into tatters. 

  • To destroy an article of clothing etc. by shredding. 

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