pontificating

/P AA0 N T IH1 F AH0 K EY0 T IH0 NG/
verb
  1. 1

    To preside as a bishop, especially at mass.

  2. 2

    To act like a pontiff; to express one's position or opinions dogmatically and pompously as if they were absolutely correct.

  3. 3

    To speak in a patronizing, supercilious or pompous manner, especially at length.

Source: https://en.wiktionary.org/wiki/pontificate, https://en.wiktionary.org/wiki/pontificating