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,
Prickly pears in Australia days it was used as a clothing dye. There is a monument to the "Cactoblastis cactorum" in Dalby, Queensland commemorating the eradication of the prickly pear in the region. The Cactoblastis Memorial Hall in Boonarga, Queensland, also commemorating the eradication. The following "Opuntia" species are recorded as naturalised in Australia: Prickly pears in Australia Prickly pears (Genus "Opuntia") are an invasive plant species in Australia. Prickly pears (mostly "Opuntia stricta") were imported into Australia in the 19th century for use as a natural agricultural fence and in an attempt to establish a cochineal dye industry. Many of these, especially the