This word can be used in many ways, and is very versitile.
There is no true origine of this word, except that it cam from somewhere is St. Louis Missouri
Person 1,"Dude, did you hear what Joel did yesterday?
Person 2,"Yeah dude he's ChUnK'd!"
Man 1, "Dude are you really going to fight George? He so ripped. Man you are ChUnK'd!"