stem-winder

noun5

1. •
   A watch that is wound up by turning a small knob on a stem which holds a gear winding the mainspring.
2. •
   (US) A rousing speech, especially by a politician.
3. •
   (US) Someone who gives such speeches; a great orator.
4. •
   (US, nonstandard) A boring, interminable speech.

   • Or – heaven forbid – the Bill Clinton of 1988, who gave a tedious stemwinder in 1988 that has gone down in the books as the worst nominating speech in recent memory? — 2000
5. •
   (US, no longer used) Something top-notch or first-rate.