a kettle of fish

That was a different kettle of fish for all concerned.

But the other man was a different kettle of fish.

It is, however, very much its own kettle of fish.

My friend George is a different kettle of fish entirely.

It was going to be a pretty kettle of fish if she went 'about giving that out.

But this business is a very different kettle of fish.

But the tobacco industry is a different kettle of fish.

The new office, which we've just moved into, is a rather different kettle of fish.

A very different kettle of fish, she was soon to discover.

That would be a fine kettle of fish to start things off!