niminy-piminy

overtly or excessively prim

"I detest rude, unlady-like girls." "I hate affected, niminy piminy chits."

Inside were many fine pictures, not in the niminy-piminy manner, but strong, full-coloured, and just.

excessive primness; affected delicacy; mincingness

one who acts in an excessively prim manner

"I was," she said, "but I didn’t stay." Her nose was shiny and her hair was bedraggled. "If I had been penned in with that niminy-piminy any longer I'd have broken down the door to get out."