ballyhoo vs toot one's own horn

ballyhoo

verb
  • To sensationalise or make grand claims. 

noun
  • An unseaworthy or slovenly ship. 

  • Sensational or clamorous advertising or publicity. 

  • Certain species in family Hemiramphidae, inshore, surface-dwelling needlefish forming sizeable schools. 

  • Hemiramphus brasiliensis 

  • Noisy shouting or uproar. 

toot one's own horn

verb
  • To promote oneself; to boast or brag; to tout oneself. 

How often have the words ballyhoo and toot one's own horn occurred in a corpus of books? (source: Google Ngram Viewer )