canvas vs syrup of figs

canvas

noun
  • A mesh of loosely woven cotton strands or molded plastic to be decorated with needlepoint, cross-stitch, rug hooking, or other crafts. 

  • A piece of canvas cloth stretched across a frame on which one may paint. 

  • A basis for creative work. 

  • A painting, or a picture on canvas. 

  • A type of coarse cloth, woven from hemp, useful for making sails and tents or as a surface for paintings. 

  • A tent. 

  • A rough draft or model of a song, air, or other literary or musical composition; especially one to show a poet the measure of the verses he is to make. 

  • A region on which graphics can be rendered. 

  • Athletic shoes. 

  • Sails in general. 

verb
  • To cover (an area or object) with canvas. 

syrup of figs

noun
  • A type of laxative made from figs. 

  • A wig. 

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