As common as muck British Australia phrase simile UK informal
Used to indicate low-class.
Don't invite Jane to our party! She is as common as muck.
You think you are a big shot, but I think you are just as common as muck.
At a much higher level than other people or things
To accept what is lower than your hope or your goals
Suddenly and quickly decrease
If you say that you pare (something) to the bone, you mean that you reduce to the lowest level.