dally vs step on it

dally

verb
  • To delay unnecessarily; to while away. 

  • To waste time in trivial activities, or in idleness; to trifle. 

  • To wind the lasso rope (ie throw-rope) around the saddle horn (the saddle horn is attached to the pommel of a western style saddle) after the roping of an animal 

  • To caress, especially of a sexual nature; to fondle or pet 

noun
  • Several wraps of rope around the saddle horn, used to stop animals in roping. 

step on it

verb
  • To act quickly. 

  • To drive fast; to step on the accelerator. 

How often have the words dally and step on it occurred in a corpus of books? (source: Google Ngram Viewer )