27 AUGUST 1994, Page 25

One for Mary

Sir: I need the advice of your sex-and- humour expert, Paul Johnson, on a matter that has been perplexing me for some time and inhibiting discussion of matters matri- archal. 'Willy' seems to have become ubiq- uitous, acceptable from Radio 4 to the Daily Telegraph to the dinner-table. What is the acceptable female equivalent?

Tom Quirke

Weoley Hill, Birmingham