clincher Meaning, Definition & Usage

  1. noun an argument that is conclusive
    determiner; determining factor.
  2. noun a point or fact or remark that settles something conclusively
    decisive factor.
  3. noun a tool used to clinch nails or bolts or rivets

WordNet


Clinch"er noun
Definitions
  1. One who, or that which, clinches; that which holds fast. Pope.
  2. That which ends a dispute or controversy; a decisive argument.

Webster 1913