Definition of Brexiteer in English:

Brexiteer

noun

British
informal
  • A person who is in favour of the United Kingdom withdrawing from the European Union:

    ‘many Brexiteers laud Norway for its separateness from the EU’

Origin

Early 21st century: from Brexit + -eer.

Pronunciation

Brexiteer

/brɛksɪˈtɪə/