TV host James Corden also appeared on the show (Image: GETTY)
It is particularly linked to east London and Essex and often overlaps with cockney.
Ms James said: “Describing the podcast as ‘Our tweny-tweny holiday special’, Harry drops the second ‘t’ in ‘twenty’ in a verbal slurring that sounds either American or South London, although the ‘holiday special’ wording probably places it in the US.
“He says they ‘wanna’ honour rather than ‘want to’ and he pronounces the word ‘look’ more like ‘luck’, both of which would probably sound right in the Queen Vic in EastEnders.”
Spotify announced earlier this month it had signed a multi-year podcasting deal with Meghan and Harry.