Definition of josser in US English:

josser

noun

informal
  • 1British A man, typically an old man or one regarded with some contempt.

    ‘an old josser’
    • ‘The success of Giffords ensured that she would never feel like a josser (slang for simpleton) again.’
    • ‘A few minutes later a friend joined pinky but she didn't divulge the story of the old josser.’
    • ‘Not bad for three old jossers wandering along country lanes for a few hours!’
  • 2Australian A clergyman.

Origin

Late 19th century (in Australian sense ‘a clergyman’): from joss + -er.

Pronunciation

josser

/ˈjäsər//ˈdʒɑsər/