Top definition
After a day in London (or any other city - change the place name), you get home and blow your nose and are greeted to a black soot on your white tissue.
Arriving at work in the morning and blowing your nose - "I've only been in London 2 hours and I've already got London nose!".
by the booger meister January 02, 2014
Get the mug
Get a London Nose mug for your daughter Larisa.