On the Internet, what is a dead giveaway that someone is actually a kid?

https://lemmy.ml/post/17542340

On the Internet, what is a dead giveaway that someone is actually a kid? - Lemmy

“skibidi” “rizz” “sus”
I’m approaching 30 and will gladly use all of those both ironically and unironically.
Approaching 50, use SUS regularly, skibidi usage is dropping off, I’m aware of rizz but don’t really use it.
Sus is actually a really old word.