Howdy All,
Having been born in Preston, England. And raised, for the most part of my adult life, here in the States, I've lived the double-language ' thing' all my life. And also, fortunately being of a sound education, and a political bent, many a battle was fought in school debating the 'proper' spelling of certain words, i.e., Colour, Armour, etc.
So, please, continue this discussion......I am really enjoying it!! :-)

:-)
And if we all get a better understanding of the phrase's after discussing them, well then......"Bob's yer uncle!!"
And for those who have no wish to understand, all I can say is "On your bike!"
Tread.
Oh, one last parting comment. When I was in my twenties, and was living on the east coast of the United States and dating with any regularity. If I happened to 'get lucky' that particular time, and the young lady decided to stay the night. I, being the young well-mannered bloke would always ask the woman if she would like 'Banger's' in the morning.......well, they would normally take the phrase to mean the 'other' side of the double-entandre.