It's fine. https://en.wikipedia.org/wiki/Call_a_spade_a_spade https://en.wikipedia.org/wiki/Call_a_spade_a_spade Any concern over it is very recent and ahisto

It's fine. https://en.wikipedia.org/wiki/Call_a_spade_a_spade https://en.wikipedia.org/wiki/Call_a_spade_a_spade Any concern over it is very recent and ahistorical. Like the false etymologies of "rule of thumb", but far less well-established (and hopefully it remains poorly-established—there's plenty of justified language-policing, we don't need to make up reasons to do more of it)