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1.
basically the same as sick, like wicked or cool, awesome, what ever you use to desribe something thats great basically.
Yo man, that tune was sickage!
by deadlyangel March 13, 2004
 
2.
1. a person who is awesome at something and u hate it
2. another way of saying thats sick but sounds better
3. a man getting fingered up the ass by his girlfriend
person 1:shit hes awesome at football
person 2:ye hes sickage at it
by DJ SPYKERZ(SCOUSE MANIAC) June 03, 2009