This idiom often carries a tone of stress or overwhelm due to a high volume of tasks or responsibilities.

Emotional Intensity

The phrase is hyperbolic and does not mean that something is physically up to one's eyebrows.

Not Literal

Use this idiom in casual conversations rather than formal writing or professional communication.

This idiom implies being involved in something challenging or problematic, often beyond one's control.

When someone says they're 'up to their eyebrows' in something bad, it's common to express concern or sympathy.

Sometimes the phrase indicates strong involvement in something one is passionate about, not only problems.