“With you bruv yeah”
There has been many changes to standard English and the word “bruv” is slang for the word brother or friend and despite the fact that it is lazy,it is mainly used by south Londoners because of its efficiently .The reason why the character in the transcript is using the word “Bruv” is because people in the group understand the word.This is known as an idiom.The group in the transcript know each other since they’re using idiomatic expressions.This may suggest their informality.
“Cuz of that”
The word cuz is a slang version of because.The reason why the speaker shortens the word is so it is efficient.”Cuz of that” is less polite than because of that, this indicates that the speaker may be angry or annoyed.

September 24, 2015 at 11:47 am
This is good clear analysis, Michael. Do you think you could go further to make some suggestions about which group of people these speakers belong to, based on the language they use?
C