So, I'm doing a presentation on slang, and this is part of my presentation:
According to Bethany K. Dumas and Jonathan Lighter, an expression can be considered "true slang" if it meets at least two of the following criteria:
1) It lowers the dignity of formal or serious speech or writing.
2) Its use implies that the user is familiar with whatever is referred to, or with a group of people that are familiar with it and use the term.
3) It is a taboo term in ordinary discourse with people of a higher social status or greater responsibility.
4) It replaces a well known conventional synonym. This is done primarily to avoid the discomfort caused by the conventional item or by further elaboration.
I'm trying to brainstorm examples of slang words that fall into each of those four categories. For #4 I've thought of the words "swanky" and "swell", because they replace the words "elegant" and "good", but I'm stumped on the rest. Any ideas?