rodomontade       
 noun [ C or U ]  formal uk/rɒd.ə.mɒnˈteɪd/ us/rɑː.də.mɑːnˈteɪd/
 自吹自擂;大话,狂言
talk or behaviour that is boastful (= praising yourself too much) or exaggerated (= making something seem bigger or more important than it really is)
  the rodomontade of the expounders of philosophy 哲学阐释者的长篇大论 
 - More examples
- The President's boastful rodomontade was parodied abroad.
- I suspect many on the left will dismiss this book as typical right-wing rodomontade.
- She amused him with some rodomontade about despising rank and wealth.
- I enjoyed his rodomontades flung at the public with such chilling relish.
rodomontade       
verb [ I ]  very formal uk/rɒd.ə.mɒnˈteɪd/ us/rɑː.də.mɑːnˈteɪd/
 自吹自擂;说大话,口出狂言
to talk in a way that is boastful or exaggerated
  There's nothing to be gained by rodomontading. 一味自吹自擂没有任何好处。 
 - More examples
- a rodomontading Congressman from the Western States