It is usually directed to another human being and most eloquently summarizes their personality or occurrence that transpired. The word can have both positive and negative connotations based on the context in which the word is used.
Etymology: The only known Dinosaur to have survived until present day. (Kind of paradoxical when you think about it).
"You sound like a goofasaurus when you babble about all that nonsense" said Othello.
Goofasauri are error prone and clumsy. Yet this word is used to gentle the drawing of attention to ones mistakes.