My son (14) watches a lot of video game streamers on Twitch.tv. I personally don't find them entertaining but I can understand why some people (like my son) do. Over the past month he's starting using terms like "pog", "jabaited", and "Kappa" which I guess are terms that are used in the scope of Twitch. I don't have an issue with my son using these terms but it's gotten to the point where every sentence is Twitchspeak. We were having dinner and my daughter (age 12) was talking about how she got accepted for a summer program with the local animal shelter, and my son said "Pog you, easy clap". I told him that it was getting out of hand and that he would have to communicate normally to his parents and family. To that he said "Weird champ, feels weird man, normies omega LOL." Until he learns to communicate like a normal human being I've blacklisted Twitch from the internet for the time being. He's hysterical now but I told him that I would unblacklist it if he stopped using twitchspeak, but he's refusing to stop so for now it's banned.
I worked with a super weird Arab guy once who always kept saying and typing 'kappa' to me. This was before twitch, back in the SC1 days. It was super awkward cause I never knew how to respond