Clincher

noun

Definitions

Noun
  1. 1
    That which clinches; that which makes something final or firm; a decisive factor.

    "The clincher was that we couldn't wait any longer to leave, or it would get dark."

  2. 2
    a tool used to clinch nails or bolts or rivets wordnet
  3. 3
    A tyre with a bead around the edge to attach to the rim of the wheel when inflated.
  4. 4
    a point or fact or remark that settles something conclusively wordnet
  5. 5
    an argument that is conclusive wordnet

Etymology

From clinch + -er.

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