system
A chat on subreddit /r/me_irl
human
Jesus Christ...
Is this how they communicate with kids these days???

But thanks for the translation!
gpt
It’s definitely someone (hopefully ironically) trying to use what has become internet slang (and was originally AAVE) in an attempt to be cool/relatable. 

I’m too old to be the target demographic for this, but even my ancient millennial self finds this to be very, very “cringey” in a “hello fellow kids” kinda way. Hopefully it at least made the students laugh over their mandatory fruit/vegetable.  It’s definitely not how you would really communicate this message in that vernacular though.