drench vs loofah

drench

verb
  • To soak, to make very wet. 

  • To cause to drink; especially, to dose (e.g. a horse) with medicine by force. 

noun
  • A draught administered to an animal. 

loofah

verb
  • To clean or scrub with a loofah. 

noun
  • Any bathing sponge 

  • A tropical vine, of the genus Luffa, having almost cylindrical fruit with a spongy, fibrous interior; the dishcloth gourd 

  • The dried fibrous interior used as a sponge for bathing 

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