Rhyming slang and toad" (the main road) and "apples and pears (stairs), as well as many more obscure examples, e.g. "Battle of the Nile" (a tile, a vulgar term for a hat), "Duke of York" (take a walk), and "Top of Rom" (home). It remains a matter of speculation whether rhyming slang was a linguistic accident, a game, or a cryptolect developed intentionally to confuse non-locals. If deliberate, it may also have been used to maintain a sense of community, or to allow traders to talk amongst themselves in marketplaces in order to facilitate collusion, without customers knowing what they were saying,
Crystal Palace and South London Junction Railway Hill Wood nature reserve. Two tunnel entrances remain at Hillcrest Wood and are known hibernation roosts for the Brown long-eared bat. In the early 1990s, a local amenity group, Friends of the Great North Wood, produced a walking leaflet entitled "From the Nun's Head to the Screaming Alice" describing a route that closely follows the line. ('Screaming Alice' was Cockney rhyming slang for Crystal Palace.) The walk continues from the site of Crystal Palace High Level past the Crystal Palace Museum to the remaining Crystal Palace railway station (formerly Crystal Palace Low Level). The line served the following stations: Crystal