An expression of admiration or enthusiasm for a person, thing or action. It can stand alone as an exclamation but is frequently used as a modifier to qualify something as excellent. It is associated with Middle Eastern and Mediterranean Australian English, as explained on the Australian language blog Fully (sic).
a guy who owns a BMW
trys to get into fights for no reason
has a really big neck drives with windows down on a 2 degree night
west sider says his not a sickcunt but he is
listen mann. the word fully sik is a gay word and people only started saying it when fatpitza came out, the person that first said it should be stabbed several times in the back