swallow up vs trouser

swallow up

verb
  • To voraciously consume resources, such as money; to devour. 

  • To completely enclose or envelop. 

  • To take over or absorb something (especially an organisation) so it no longer has a separate identity; to assimilate. 

trouser

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

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

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

noun
  • A pair of trousers. 

  • Of or relating to trousers. 

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