T-shirt vs flannel

T-shirt

noun
  • A lightweight shirt without buttons, usually with short sleeves and no collar. Often made of cotton and frequently bears a picture or slogan. 

flannel

noun
  • A washcloth. 

  • Soothing, plausible untruth or half-truth; claptrap. 

  • A soft cloth material originally woven from wool, today often combined with cotton or synthetic fibers. 

  • A flannel shirt. 

adj
  • Made of flannel. 

verb
  • To flatter; to suck up to. 

  • To wrap in flannel. 

  • To waffle or prevaricate. 

  • To rub with a flannel. 

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