trouser vs walk off with

trouser

verb
  • To secretively steal (an item or money) for personal use. 

  • To put (money) into one's trouser pocket; to pocket. 

  • To take and keep (something, especially money, that is not one's own); to pocket. 

noun
  • A pair of trousers. 

  • Of or relating to trousers. 

walk off with

verb
  • To steal, especially by surreptitiously removing an unguarded item. 

  • To make the strongest favorable impression in a theatrical or similar performance, in comparison to other performers. 

  • To win, as in a contest and especially without significant effort. 

How often have the words trouser and walk off with occurred in a corpus of books? (source: Google Ngram Viewer )