I can't tell if this is newspeak or I just talk to retard, but one person I know says "yee" instead of "yeah" in real life.
I've seen people type "ye" instead of "yeah," and even that annoys me, but it feels like this person saw that typed out and decided she needs to pronounce it that way too.
It doesn't even flow into the rest of a thought, she'll just say "ye." as the final thought in a conversation.
I have another friend whose speech habits noticeably change at the speed of Twitter trends.
Examples include saying "it me " and then showing me a picture she finds relatable. That shit is (supposed to be) cutesy online, but it does NOT translate to real life at all.
Luckily that only lasted a month or two before never happening again.
The flipside to these terms evolving so unnaturally quickly is that when my (much older) boss says "you're totally triggering me right now" years after everyone's stopped saying "triggered," it's really, really funny how uncomfortable everyone gets.