loofah vs soak up

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 

soak up

verb
  • To absorb or draw in a substance, especially all of that substance 

  • To absorb or deflect a series of actions; to endure a behavior from someone. 

  • To enjoy some effects. 

  • To learn, especially passively or eagerly; to allow an experience to affect oneself 

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