I just said this the other day, so this is going to amuse several people, but no fair :) Whenever I say "Up to a point Lord Copper", someone always looks at me oddly, and then I try to explain, and then I add "...and it's really funny!" and they look at me.

The relevant excerpt, for anyone who might actually be curious, is:

Mr. Salter's side of the conversation was limited to expressions of assent. When Lord Copper was right he said, 'Definitely, Lord Copper'; when he was wrong, 'Up to a point'.

'Let me see, what's the name of the place I mean? Capital of Japan? Yokohama, isn't it?'

'Up to a point, Lord Copper.'

'And Hong Kong belongs to us, doesn't it?'

'Definitely, Lord Copper.'