Tom Anderson wrote:

And that's slang. Is there really no proper word for it that isn't a
euphemism?

For a former house, I acquired two miniature enamelled BR Totems. The
upstairs one, in WR brown, said BATH, and the downstairs one, in SR
green, said WATERLOO. Two moves of house on, I've lost track of where
they are.

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http://gallery120232.fotopic.net/p9632877.html
(33 106 at Reading, 4 Mar 1980)