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1.
The act of hunting for n00bs to stalk down and own
Fishing for noobs
Dude I went noobin yesterday and caught some big ones
by Caleb Craig April 18, 2008
 
2.
n. a fart of the silent variety; see also noobinan

synonym - SBD (silent but deadly);piper
Man 1: "Aww! What's that smell?!"
Man 2: "Noobin!"
by Beef Jerkin April 18, 2004
 
3.
A noobins or n00b!ns is a person that is not very good, or their first time at a game. Usually COunterstrike the Half-Life Modification
"Oh sod off n00b!ns"
by Old Boy George May 09, 2003