A newb is the more propper way of saying the online Insult noob to a new player on an online game or a new friend on AIM, Myspace, FaceBook, MSN messanger, any program online if you are new to it ppl have the right to call you a Newbie or Newb so don't fight it you'll grow out of it sooner or later when a newer kid moves into town/goes to your school/joins the team
"WOW! that dude is such a Newb he SUCKS! at everything"
another friend hears that being said so he then says
"Oh I know dude"
the Newb then hears the insult and he dorkishley comes up and says
"Hey new friends"
the regular town's kids yell back at him
"Get AWAY! from us ya NEWB!"