make a mockery of

verb3

1. •
   To give a bad name, to act in such a way as to bring ridicule upon that which one represents.

   • The Begin regime has made a mockery of the slogan "Never Again," which to me means a determination to work against another Holocaust occurring against the Jews or any other people. — 1982
2. •
   To defeat easily, so as to show up as inadequate.

   • The burglars made a mockery of the museum's security system.
3. •
   To mock; to ridicule or imitate, often to express contempt.

   • After Gervinho had been brilliantly denied an early shot on goal by Mats Hummels' outstretched boot, the German champions made a mockery of their fourth-seeding in this season's group-stage draw. — 2011