A universal word used to describe a person. Most commonly but not always used as an insult. The term is most famously used in the comedian T-Rex's skit titled "Spooby" where an irritated driver uses it to insult the main character.
Spooby can be used to refer to any type of person whether it be by personality, race, color, etc.
"Those spoobies are winning the game."
"That spooby of a babysitter just canceled on me."
"If that guy lays a finger on me again I will go spooby-mode on him."