Long handled spoon, usually
metal, kept on the person and wielded by an unavailable or prudish woman to deter men from intercourse. In all cases the spoon is brought down hard on the
top of the
chap's truncheon - very effective at turning wood to putty.
Also commonly found on matrons/teachers touring the boy's dormitories after 'lights out' at boarding schools, to stop any cases of self-love that maybe occuring.