play dead vs roll over

play dead

verb
  • To act as though defeated while awaiting a chance to attack. 

  • To lie very still, like a corpse. 

roll over

verb
  • To give in to. 

  • To increment, especially back to an initial value. 

  • To make a rolling motion or turn. 

  • To reinvest funds from a lottery into a subsequent one, because nobody won it. 

  • To reinvest funds from a maturing financial security in the same or similar investment. 

  • To easily overwhelm; to steamroller; to brush aside. 

  • To move the cursor over. 

  • To cause a rolling motion or turn. 

How often have the words play dead and roll over occurred in a corpus of books? (source: Google Ngram Viewer )