bath sponge vs wash up

bath sponge

noun
  • A sponge, made from any material, that is used for cleaning the body while bathing. 

  • A commercially used species of sponge (porifer, invertebrate of the phylum Porifera) found throughout the Mediterranean Sea, Spongia officinalis. 

wash up

noun
  • The act by which something is washed. 

  • A meeting to gauge the success or failure of an operation or war game. 

  • Something or somebody that is washed up; a has-been. 

verb
  • To clean the utensils, dishes etc. used in preparing and eating a meal. 

  • To carry (an object) to land. 

  • To be carried by water to land. 

  • To wash one's hands and/or face, often around mealtimes. 

  • To arrive in a place; to end up somewhere. 

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