When looking at many Tweets you can find many 'elaborations' on words, eg. hi > hiiiii, hello > helllloooooo, down > downnnnn. They are not exactly slang in my own opinion, maybe they are but of a different type. It seems like they are trying to convey an emphasis change or draw more attention. Also, they are not completely new words and don't look like they might become either. Have such modifications been categorized? Is there a name to identify such usages of normal words? From what I know I have only seen them being used in Twitter.
- Linguist Michael Erard told The Atlantic that word lengthening, also referred to as expressive lengthening, stems from a desire to incorporate verbal speech in digital communication. “When people talk, they use intonation in a number of varied and subtle ways … There’s a lot of emotional nuance that can be conveyed that you can’t do in writing.”
Ngram: Helloooo - word lengthening was used in papers and magazines also before tech devises were invented, but its usage has consistently increased since the 80's with the spread of digital communications.