There's a book called 'The Meaning of Liff', I think its by Richard Adams (God bless 'im) and one of his mates.
It's all about imaginary meanings for U.K. place names.
'Norton Thrubwell' is given as the feeling of satisfaction experienced when driving off on a new motorbike, and a 'Stebbing' is apparently the correct name for an unwanted erection.
'Whetwang'; A moist penis.
Try and get hold of this book....