What is REEEEEEEEEEEEEE?

A screeeeeeech or screeam from a slight madness or just for fun

omg, reeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee!!!!!!

REEEEEEEEEEEEEE - meme gif