Adj. Can be used to describe the state of something damaged, abused, over worked, etc.
2. Don't muscle-fuck the lid on the mayonnaise jar! Someone might want to get in there some day.
3. I had to replace the driver's side seat because it was completely muscle-fucked.
your friend: trying to open this bottle of soda
You: why your eyes gotta bug out like that
your friend: Man somebody muscle fucked the shit outa this.