What does interest of slang mean? Well it could pertain to you trying to accumulate new slang to fit into a new group or it is something that has come naturally to you in your upbringing and experiences, like my partners said, your slang can really pertain to your age, location, and motivation for it.
Using the right terminology or slang to fit into a group is the most common source of people picking up new slang, this new group maybe a job, team, or discourse community. so knowing the slang that goes on would better integrate you and familiarize you into the group. Some example have been brought up by my partners and those examples being if you are around 20 and trying to fit into a specific group more than you already are or with the possibility if you have a job of being a doctor, you may need to learn their slang in order to communicate more connectively and effectively.
Now I’m going to talk about interest in the sense of age and origin. Interest in slang is bound to change throughout the years and the different age groups will have their own set slang and this is developed from your origin, age and your current interest involving those two factor. As you grow the interest you have for things will change and depending on your decisions and groups that you join, your slang will change as well, though like other people this will be formed from your interest and upbringings.