Meaning of yam yam in English:

yam yam

Pronunciation /ˈjam jam/

noun

informal Midlands English
  • A person from the Black Country in the West Midlands.

    • ‘it's bad enough when yam yams visit Kings Heath’
    • ‘all we need now is a goal from Wolves to make it a great night for yam yams’

Origin

1990s reduplication of yam, representing a regional pronunciation of you am, a dialect usage regarded as characteristic of Black Country speech; use of the term is particularly associated with Birmingham, a city close to but not part of the Black Country.