to make (e.g. an arrangement) final; to settle (something)
That clinched the argument
We set up a meeting to clinch the deal
to turn over or flatten the protruding pointed end of (e.g. a driven nail)
to fasten (something) in this way
in boxing or wrestling, to hold an opponent at close quarters
informal to embrace or hug somebody
to turn over or flatten the protruding pointed end of (e.g. a driven nail)
to fasten (something) by clinching a nail, etc
in boxing or wrestling, to hold an opponent at close quarters
informal to embrace or hug somebody
[prob alteration of clench]