makeweight

/M EY1 K W EY0 T/
noun
  1. 1

    Something of inferior quality which is included in a shipment to make up the weight.

  2. 2

    Something included to add to the apparent weight or force of an argument.

    โ€œHe added a long litany of peripheral precedents which the judge dismissed as mere makeweights.โ€

Source: https://en.wiktionary.org/wiki/makeweight