Post by Jonathan WilliamsWhere does the condescending term "don't be a sap" come from?
Any idea?
I know what it means, but not how it came to mean that.
A sap or cosh was a powdered lead-filled piece of leather used to knock
people out. They were carried by both police and criminals. (I assume
they still are.)
I had an uncle who used to say things like, "He's such a knothead that
you could tap him and let the sap run out." I doubt that's where this
came from though. :-)