Spiel:
a speech, especially one that is long and spoken quickly and is intended to persuade the person listening about something:
- a sales spiel
- They gave us a long spiel about why we needed to install double glazing in our house. [Cambridge Dictionary]
A bit old-fashioned, I suspect, but useful for period fiction or a desire to distinguish oneself with one’s patter, which is itself listed as a synonym.. I wonder how many campaign speeches qualify, as the spoken quickly constraint surprised me a bit. Noted in “Harris embraces patriotism and decency. Will voters?” Jennifer Rubin, WaPo:
This was a presidential-level address, not merely another campaign spiel. [Kamala Harris’] delivery, timing and demeanor conveyed calm authority. She is betting that patriotism, decency and kindness still win in Americans’ hearts. She stuck the landing this week; now, it’s up to the country to prove her right.