Certain terms when you use them, you are just proving that they really apply to you...
Like 90% of the time in a game where a player is calling people out as 'noobs' (such a juvenile, angsty 12-year-old word), that player usually ends up being terrible, knows a lot less than they think they do, and usually feeds worse than anyone else, proving themselves to be the biggest 'noob' on their team (there ARE a lot of people from DoTA that are in this category unfortunately, because they tend to think that if they are experts in DoTA, they are automatically experts in LoL, and refuse to change or try new things).
Generally I find they are also the type of player that leaves half their games or rages if people won't hit surrender when they spam it over and over after THEY had a poor start because they kept dying to some weak champ in lane, while loudly complaining about how OP that champ is and how the game is over because the other team and that champ are 'too fed' (this usually ends up being all their fault), or because they don't like how some other person on their team is building items THEY think are bad, even though that person is doing a lot better than them.