What is 30 days in the hole meaning?

"30 Days in the Hole" is a song by the English rock band Humble Pie. The phrase "30 Days in the Hole" typically means being confined to a small, isolated space, often in reference to being incarcerated or experiencing a form of punishment. The song's lyrics describe a man's time in prison and the ways he copes with being locked up. The phrase has since been used in various contexts to describe being stuck in a difficult or unpleasant situation.