Through my analysis i found the non standard English words to usually be omitted words. This usually occurs naturally in our speech which we are oblivious to. We usually do this to shorten words for efficiency and for faster speaking for shortening and increasing effect.
Idioms are also used to create a figurative or literal meaning. It is usually used together with imagery. Usually idioms are inside and not known unless you are part of their group or gathering. They are usually rude words or phrases that have a different meaning behind it. This is one of the many language features we use while we speak and we don’t realize it.
In addition we use short sentences to exaggerate and create tension and suspense or we use for efficiency to induce the reader or audience depending on the situation. This can be called laziness to some but to others it’s an effective language feature.