You have to cite the resource and give the person who wrote the article credit to not be accused for plagiarism.
It is all capitalized making it seem like the writer is shouting at us
Well, most slang words that have been used for a long period of time have been added to the dictionary, but then again, some other slang words have not. So, it really depends on the word.
But, for a straightforward answer i would say yes, just because some slang words are in the dictionary.
~Hope this helped
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