cockney rhyming slang 

Cockney rhyming slang is a form of English slang which originated in the East End of London. Many of its expressions have passed into common language, and the creation of new ones is no longer restricted to Cockneys.
Rhyming slang developed as a way of obscuring the meaning of sentences to those who did not understand the slang, though it remains a matter of speculation whether this was a linguistic accident, or whether it was developed intentionally to assist criminals or to maintain a particular community.
Rhyming slang works by replacing the word to be obscured with the first word of a phrase that rhymes with that word. For instance, "face" would be replaced by "boat", because face rhymes with "boat race". Similarly "feet" becomes "plates" ("plates of meat"), and "money" is "bread" (a very common usage, from "bread and honey"). Sometimes the full phrase is used, for example "Currant Bun" to mean "The Sun" (often referring to the British Tabloid Newspaper of that name). There is no hard and fast rule for this, and you just have to know whether a particular expression is always shortened, never shortened, or can be used either way.

Examples included in definition.

cockney rhyming slang by Santi July 28, 2005

cockney 

Literally, a person born within earshot of the bells of St Mary-le-Bow church in what is now the City of London. However, technically speaking there can be no cockneys born after 1945 since the bells were destroyed by German bombs during WWII.

Today the term has expanded to encompass not only those from East London specifically but from London in general. The latter tends to be attributed by non-Londoners, stemming from their ignorance of the true meaning of the word.

cockney by hux May 31, 2003

cockeysville middle school

a dumb ass school where everyone wears Vineyard Vines and name brand clothes. most people act like they're cool when they just look dumb. there's the ghetto kids, "popular" kids, and the emo kids. the teachers are good teachers but they're super strict. i fucking hate the school, but whatever.

fuck cockeysville middle school

cockeysville middle school by boyykidd September 14, 2017

cockinyawn

While a person is in the act of yawning, you vigorusly move your arm in a jacking off motion into their mouth, as if your giving a cumshot. Also remember the word Joffing.

Chris- "Dude you better not yawn! or im going to cockinyawn the shit out of you!"

James- "Dude, that would fucking own me"

Greg Cole- "Greg Cole Here!!!!"

cockinyawn by Ronald P. Bund December 19, 2009

Wet Cockney Fiddler 

Being under the thumb of a girlfriend.

She’s bossing him around, he’s such a wet cockney fiddler.

Wet Cockney Fiddler by Hugh Horace January 8, 2018

Cockenheimer 

A person whose idiotic actions resemble that of the organ for copulation and urinary excretion.

He can be such a cockenheimer when he's inebriated.

Cockenheimer by Francis P. Sawyer January 10, 2012

Cockney neck

When you have been speaking to much cockney and it does your neck in.

Nick: "do you have any idea why jack is wearing that ridiculous neck brace?"

Jane: "the doctor said he has to wear it after his trip to croydon. He's got a nasty case of cockney neck."

Cockney neck by roflmaonaze May 6, 2010