"Scoob" is a word derived from the word scoobies meaning charred bits of ash or bud that you inhale as a result from hitting a bowl. The word originated from the Portland - Vancouver area around 2009 and has far strayed from the meaning of scoobies, it is now used as a sort of nonsense word to describe absolutely anything. It can be used as a Verb, Noun, Adjective and Interjection. (Plural being "scoobs," Past tense being "scoobed")
"Damn bro, he just hella scoobed you!"
"I was walking down the sidewalk when I saw a scoob on the ground."
"I wouldn't mess with him, I heard he's scoobier than you could imagine"