Written as though that is a commonly known term and offers zero explanation as to what that means. I assume a really bad sore throat?
If you have had that feeling you know what it is like. I went to urgent care and said exactly that ....swallowing razor blades.
Of course, if you actually swallowed razor blades I am sure that would be much worse but what I experienced was horrendous. Tesla pearls (Tessalon perles) did help with nasty cough
I would assume that it means that, when you swallow, the first blade lifts the bristle, while the second blade cuts it off.
Regards,