what is slang?
definition
The use of words or phrases that are more commonly used verbally and in a casual context than in writing.
example
"Meet me in da hood at 7." - This phrase is short for "neighbourhood" and usually refers to a particular part of town that is well known to the people who live in it.
explanation
When you see slang in writing, it reveals something to you about the character or context indicates the writer's limited vocabulary skill level. It is a quick way to help you locate the setting of a piece of writing and indicates the background and customs of the character who is speaking or indicates the writer's voice. A writer will use slang deliberately to give colour to a piece of writing and to give the reader additional clues about the character.