1) When you
do something good and think its all down to your skill/
knowledge or whatever, you just say skillage.
2) Or when someone does
something good.
3) In football, When you take it around someone or Skill them you shout SKILLAGE
Brandon: Did you SEE THAT!
Oh My God. That was sick.
Steve: Yeh,
all you did was take
the ball round me, dont be acting like your all hard.
Brandon: And? It was skill "Skillage".
So in actual Fact steve Got Pwned aswell :D