Hope it's OK to go back to "Scouse". I went to school in Liverpool (taking the furry across the Mersey. It's also the shuggar plume furry)
I wouldn't have minded being called scouse, though my mother would have been mortified. We also called hot-pot "scouse" (though not at home) or, if no meat, blind scouse.
I don't think the word was derogatory
Insead of "Pardon, my good man", correct Liverpudian at the time would be "Yer wot, wack?"
My favourite scouse saying (other than the rude ones) is an exortation to a football player "Ger yer leg out the one knicker".