No your not getting confused, it's cockney rhyming slang.
And I think your thinking about old rural yorkshire, they have several words you won't find in the english dictionary. I have no idea what they are tho.
Yorkshire is the biggest county in England and as such has not one but many different accents. It also used to have a number of related dialects. My favourite example of these old dialects is the counting system used by sheep farmers.
In Swaledale, one of the most remote corners of Yorkshire, they would count thus:
- Yan
- Tan
- Tether
- Mether
- Mimph
- Hither
- Lither
- Anver
- Danver
- Dick
- Yan dick
- Tan dick
- Tether-a-dick
- Mether-a-dick
- Mimphit
- Yan-a-mimphit
- Tan-a-mimphit
- Tether-a-mimphit
- Mether-a-mimphit
- Jiggit
There are still many dialect words still used today although very few people use dialect as their main mode of communication. Some Yorkshire dialect words have found their way into mainstream English, such as cadge (to ask to borrow), ta (thank you), mardy (moody, bad tempered), skint (penniless).
You can find some lovely examples of Yorkshire dialect on the internet, much of it in verse, it really does lend itself well to humour.
Here's a short example, something my dialect-speaking grandfather always liked to recite...
Hear all, see all say nowt
Eat all, sup all, pay nowt
An if tha ivver dus owt fer nowt
Do it fo thi'sen
Owt = something
Nowt = nothing
Ivver = ever
Tha = you
Thi'sen = yourself