Because they're brazen hussies.
JACK
I saw them having a glass of beer.
MRS. HOLROYD
A nice crew!
JACK
They say they are old pals of Mrs. Meakins. You could hear her screaming o' laughin', an' my dad says: "He-ah, missis—here—a dog's-nose for the Dachess—hopin' it'll smell samthing"—What's a dog's-nose?
MRS. HOLROYD (giving him a piece of bread and butter)
Don't ask me, child. How should I know?
MINNIE