take down a notch

1.
General English (US, UK, etc.)informalcolloquial
- To reduce someone's pride, self‑importance, or social standing; to humble or chastise someone so they appear less arrogant.
- To diminish the perceived status, reputation, or esteem of a person or thing.
2.
General English (US, UK, etc.)informal
- To lower the level, intensity, or degree of something by a small amount (for example, a setting, volume, power, or speed).
- To reduce a measure or value by a minor increment.

Examples: