embroider vs lay it on with a trowel

embroider

verb
  • To add imaginary detail to a narrative to make it more interesting or acceptable. 

  • To stitch a decorative design on fabric with needle and thread of various colours. 

lay it on with a trowel

How often have the words embroider and lay it on with a trowel occurred in a corpus of books? (source: Google Ngram Viewer )