To be switzerland
"to be switzerland on a certain topic" - being Swiss myself I have no problems imagining what the phrase stands for (to be neutral on something), but I wonder when and where this phrase was coined and where it is used today.
A bit of negative information I'm afraid: I have never heard it used in either Ireland or the UK, though like you I worked out what it meant straight away.
Where have you heard/seen it?
DFG