1457: Cockney Rhyming Slang pt. 2 Dec 7, 2018
Cockney rhyming slang's structure was covered a bit yesterday, but while it might seem pretty silly, this was a widely used system slang for a very long time and into today, and even if you don't use it intentionally, there is a possibility you picked up a few words here and there. For instance, the expression to "blow a raspberry" usually refers to a derisive sound made by vibrating the tongue against the lips, but it comes from the Cockney "raspberry tart" as a slang for "fart". Another example, though a little more regional, is "berk"—also somewhat distasteful— comes from "Berkeley Hunt" which was slang for 'cunt'. Indeed, there are lots of words and phrases that have made their way into common parlance from Cockney that don't necessarily sound so out of place in Standard English or American speech.
Check out the latest video: https://youtu.be/PKXEg15Etk0