Originally Posted by Bilbo1967
The longest one I know (having read it in a Bill Bryson book and being struck by its weirdness) is;
Satan oscillate my metallic sonatas
I question whether sonatas can be metallic. And if they can, whether they can be oscillated. But I think I'll allow it.
Only 5 words, but 31 letters!
Do we have an advance on 31?