1. Clapham Junction - Noun
2. Clapham Junction - Proper noun
(rail transport) A major rail transport hub in south-west London, England, which has the distinction of being the busiest railway station in Britain.
The surrounding area in the London Borough of Wandsworth (OS grid ref TQ2775).
Clapham Junction (uncountable)
(figuratively) Somewhere where many paths – either literal routes of travel or metaphorical lines – cross.
Tickets were being accepted on buses between Clapham Junction and Wimbledon. Source: Internet