Through most of history, people developed regional accents from talking to the people around them. Then movies and TV helped to flatten those accents as people were exposed to the way Hollywood talks. Then we got the internet, which shattered the shared media landscape, and allowed like-minded people around the world to find each other. So now instead of accent being a matter of geography, it is a more likely a matter of media choice.
In this world, there arose a way of speaking that is termed the "lifestyle influencer accent," which is designed to create intimacy and engagement for SEO purposes. A subset of this accent is the "lip filler accent," which is when people speak as if they have had their lips filled even if they haven't. The procedure changes the way someone moves their mouth and affects their speech. In that online world, word pronunciation spreads virally, and people who are too young, or too broke, to get lip fillers, end up sounding like the people who've had it done. Read how the lip filler accent came about and what it means for English linguistics. -via Nag on the Lake
I've never heard of this specific term before, but I know exactly what you mean by it. I can't stand it. Akin to fingernails on a chalkboard.
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