M25

English Proper noun 1 An orbital motorway surrounding Greater London, notorious for its general congestion. en May 6 1998 Douglas Watkinson; et al Death in Disguise Midsomer Murders DCI Tom Barnaby: And so the empty bottle in his hand? Dr George Bullard: Should've contained heart pills. Arteries like the M25. en figuratively The notional border between London and the rest of the UK. 2007, Great Britain: Parliament: House of Commons: Culture, Media and Sport Committee, Public Service Content: First Report of Session 2007-08, Vol. 2: Oral and Written Evidence, The Stationery Office 9780215037244, page 63 Under the Communications Act 2003, all the commercial public service broadcasters are therefore required to commission certain levels of network programming from outside the M25 by value and volume. en 2009 Maria Roberts Single Mother on the Verge Penguin UK 9780141919034 That's quite an achievement, I think, for someone inside the M25 to travel north, especially someone with such a plummy accent. en 2013 Paul Burke The Life of Reilly Hachette UK 9781444768299 Although he was quite capable of affecting accents from outside the M25, he always steered clear of doing so. See also Watford Gap