poacher vs pressure cooker

poacher

noun
  • A vessel with shallow cuplike compartments in which eggs are cooked over boiling water 

  • A person who trespasses in order to take game illegally, one who poaches; a person who illegally takes animals or plants from the wild. 

  • Any of type of fish in the family Agonidae, also known as alligatorfish, starsnout, hooknose and rockhead. 

  • An attacker with good movement inside the penalty box, see Wikipedia:Goal poacher. 

  • The American wigeon. 

pressure cooker

noun
  • A sealed cooking vessel that allows cooking in greater than atmospheric pressure and at a temperature above the boiling point of water. 

  • A stressful situation that is liable to erupt. 

How often have the words poacher and pressure cooker occurred in a corpus of books? (source: Google Ngram Viewer )