flimsy vs tip of the iceberg

flimsy

adj
  • Likely to bend or break under pressure. 

  • Weak; ill-founded. 

noun
  • A banknote. 

  • Skimpy underwear. 

  • A service certificate 

  • Thin typing paper used to make multiple copies. 

tip of the iceberg

noun
  • A small indication of a larger possibility; the first part encountered of a problem that is much bigger than it seems. 

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