"
REEEEEE" (with however many "E"s you would like) is a word that people on the internet use when they don't know how to react to something, or they're screaming
behind the screen. If you say it in real life, you're annoying. It doesn't really matter how you spell it, as long as it has at least two "E"s. Also, it has to be all upper-case letters, otherwise it doesn't give the effect that you are screaming like a
nutjob.
Somebody: *Says anything*
You, not knowing what to say back: "
REEEEEEEEEE"
OR
The
groupchat: *Has a conversation without you"
You,
an intellectual: Instead of saying "What did I miss" or some basic thing like that, you respond "REEEEEEEEEE"