In Terry Pratchett's book Raising Steam, there is an explanation of the phrase "Have seen the big horse" where the author uses the sentence "Maybe it's a Big Horse I'm Morporkian". What exactly does this sentence mean? Can somebody explain it for me?
It is a pun on ‘Maybe it’s because I’m a Londoner’, a song written as a morale booster during the Second World War by Hubert Gregg, but made famous by Flanagan and Allan as an expression of pride in London.
The song can be heard on You Tube if the Apple Music version on the Songfacts link above isn’t accessible.