The British Penny:

European Union  Directive No. 456179

In order to bring about  further integration with the single European currency,  the Euro, 

     all  citizens of the United Kingdom of Great Britain and Northern Ireland must be made aware  
     that the phrase "Spending a Penny" is not to be used after 30  April 2015.

From this date onward, the  correct term will be: "Euronating."  

It is hoped that this will  be a great relief to everyone.  
 
If  you have any questions, just give me a  tinkle.

Thanks Ralph