The 'Kreew' word goes back to the old game: Counter-Strike 1.3.
It was formed by clans (or crew's), who was trashtalking others. Instead of saying "Your crew sucks", they would just say "kreew!".
Its been evovling up to today, in almost every game, but now it also hits single persons.
jesus christ, youre a kreew.
i dont wanna play against a kreew
ure kreewer than that guy.
dont kreew it...