rushed off one's feet vs wall-to-wall

rushed off one's feet

adj
  • Extremely busy. 

wall-to-wall

adj
  • Full, crowded. 

  • That covers all of the floor of a room. 

  • Pervasive, ubiquitous, or unremitting. 

How often have the words rushed off one's feet and wall-to-wall occurred in a corpus of books? (source: Google Ngram Viewer )