Indicates a very serious problem, usually causing worry or trouble.

Intensity

Used among friends or people of similar age. Not appropriate in formal situations.

Informal

Considered rude or offensive by some people, avoid using it around unfamiliar company.

Describes being part of a difficult situation, often with an implication of fault.

Used when someone's actions have led to negative results.

Not appropriate in public speaking or formal writing due to its coarse nature.