What's the meaning of 'Min' in The Old Curiosity Shop?

In Dickens' The Old Curiosity Shop, the word 'min' is used. For example: "is the old min friendly?" As it is only used by one character, Mr Swiveller, one can assume it to be slang and expect it to mean 'man.' Nevertheless, I cannot relate it to a London accent of any type, and I like to think I have qualification in saying that as a resident of London since birth.

I would like confirmation of my speculated meaning, or an explanation of what it means if it means something else.

When you read Dickens, you have to keep in mind that the original format was as a serial publication, one chapter at a time, rather than as a single volume as we see his books.

This meant that as an author, Dickens faced the challenge of making the story easy to follow in serial form, and one way he did this was in characterisation. He gave his characters easily identifiable features, which has led to accusations (IMO unfair ones) that he had caricatures rather than characters. It could be physical like Mrs Sparsit's nose, mental like Gradgrind's utilitarianism, an accesory like Bill Sikes' dog, a speech characteristic like Mr Dorrit's "ha hum" or Uriah Heap's "Umble". Or it could be a dialect or accent.

As the aim was to make characters easily identifiable, it is unlikely that Dickens was faithfully recording any particular local dialect, though it is not imposible that he borrowed something he heard on the streets. It is probably better to view Mr Swiveller as having an idiolect.

For more depth, this is a good overview of Dickens characters.