bloviate
/ˈblɔvɪeɪt, ˈblɔvɪɛt/Definitions
1. verb
to speak or write at length in a pompous or tedious manner
“The politician was accused of bloviating on the campaign trail, using complex words to confuse his audience.”
2. noun
the act of speaking or writing in a pompous or tedious manner
“The audience’s patience was lost due to the professor’s lengthy, self-aggrandizing bloviation.”