onesie vs walking frame

onesie

noun
  • A one-piece garment for an infant or small child, generally worn over a diaper. 

  • One-piece fashionable streetwear worn mostly by teenagers. 

  • One-piece adult loungewear jumpsuit. 

walking frame

noun
  • A framework device used to support either an infant learning to walk or a person with walking difficulties. 

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