miscaller

/mɪsˈkɔlər/
noun
  1. A person who calls someone or something by the wrong name or title.
    • He's such a miscaller that he called his own boss by the wrong name at the party.
    • The teacher was a notorious miscaller, mixing up twins all semester.
    • As a miscaller of plant species, she often embarrassed herself on nature walks.
  2. A person who makes an incorrect decision or call in a game or competition, especially an official.
    • The referee was known as a miscaller after several controversial decisions.
    • Fans booed the umpire, calling him a miscaller for the bad strike zone.
    • The judge was a miscaller in the talent show, picking the wrong winner.
Antonyms
What does "miscaller" mean? | whatsthatwordmean | whatsthatwordmean