It is derived from three different words:
Scr: Srcub
oop: Noob,Newb, Newbie
tler:Turtler
It is commonly used to describe A person or persons acting scrubish, newbish, and/or is turtling.
Also used to to categorize someone at the early state of learning how to play a
video game.
It isn't always considered to be the describing a person with all three
characteristics, It can be used to categorize some one with one, two, or all
three words.
I fought this Guy on Wifi, he was such a scrooptler. He needs to learn how to play and not turtle so much.
Don't Lie you scrooptler, you started to play
yesterday.
I just Pwnd this Scrooptler, he had
no chance.