not care tuppence BrE
not give tuppence BrE

He did not care tuppence what anyone thought.

For all we know he may live in America or Australia, and not care tuppence about his island!'

'Ruffians like that would probably turn him loose in a deserted countryside and not care tuppence if he found his way home or not.

They did not care tuppence about the butterflies, and were only made more angry when he told them of the beautiful breeze, which they were too heavy to climb up and feel.

All of which, truth to tell, Gaius Marius did not give tuppence about.

Or, should we all just accept and resign ourselves to what many ordinary people in the street think, namely that the EU is just a big business, making more money for the big Member States, and does not give tuppence about the safety and wellbeing of the smaller Member States?