shower vs sluice box

shower

noun
  • A quantity of something that has characteristics of a rain shower. 

  • A brief fall of precipitation (spell of rain, or a similar fall of snow, sleet, or cascade). 

  • A party associated with a significant event in a person's life, at which the person usually receives gifts. 

  • A baby shower. 

  • An instance of using of this device in order to bathe oneself. 

  • Used as an intensifying pluralizer or intensifier 

  • One who shows. 

  • An object or activity that is shown in a contest. 

  • A bridal shower. 

  • A shower of shit. 

  • A man whose penis is close to its full (erect) size when flaccid, or the penis itself. 

  • A device for bathing by which water is made to fall on the body from a height, either from a tank or by the action of a pump. 

verb
  • To rain in a shower; to cascade down. 

  • To spray with (a specified liquid). 

  • To bathe using a shower. 

  • To bestow liberally, to give or distribute in abundance. 

sluice box

noun
  • A box with riffles along the bottom, used to trap heavier gold particles as water washes them and the other material along the box. 

How often have the words shower and sluice box occurred in a corpus of books? (source: Google Ngram Viewer )