jack'n-danny - A woman’s fury cup, from the cockney slang 'fanny', which is

A woman’s fury cup, from the cockney slang 'fanny', which is a beaver, not your butt.

My dad said I was a jack'n-danny for getting a D on my math test.

I got a jack'n-danny stare when I told him I missed the bus.

My friend called me a jack'n-danny for eating all the chips.