Linoob was first conceived as a word in #bit-tech (quakenet) by one of the local nutties while talking about a person who is constantly asking questions about Linux while he could find the answers easily through a searchmachine.
Linoob is actually a concatenation of "Linux" and "noob". It means a person who is a beginner in Linux.
Person A: Man that guy pisses me off! With the incessant forum posts everytime he gets a small linux problem on which a 5 second google search would give him millions of answers
Person B: He's a linoob!