its a cross between rubbish and muckage
used for something really brutal and shit
"oh man that is rubmuck" - looking at a poor article submitted by traineed journalst
"pure rub muck, worse than muckage"
a cross between rubbish pronounced 'rubbage' and muck.
The game was muckage. It was a nil - nil and had no entertainment.
"That was muckage.Worst movie I ever seen!"