swaggering vs too big for one's boots

swaggering

noun

  • Boastful, blustering behaviour. 

adj

  • Boastful, proud, self-confident. 

too big for one's boots

adj

  • Far less important or capable than one thinks or claims oneself to be. 

How often have the words swaggering and too big for one's boots occurred in a corpus of books? (source: Google Ngram Viewer )