Street talk (5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
slang
'street talk' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for slang that I've seen before include "colloquialisms" , "form of language" , "Insult" , "Vernacular" , "Any class's jargon" .)