clincher

This was a clincher—assorted worthies sent their own medals back in protest but everyone else was delighted.

The real clincher, though, is that their only instruments are a drum set and dozens of beer bottles.

The doubling of images of, say, the finger when the eyeball is pressed, is frequently proffered as a clincher.

In the South an expression of this kind is very often added on as a sort of clincher to give emphasis.

This last was a clincher and the obscurantic antisalts received the deathblow they richly deserved.

And he backed his assertion with an oath, swallowing off the contents of his glass by way of a clincher.

It is a clincher which no sophistry can set aside, no reasoning can grapple with, and no logic overthrow.