"All over hell" is a colloquial phrase that means everywhere or scattered haphazardly. There are several synonyms that could be used in lieu of this phrase to convey a similar meaning such as "widespread", "disarrayed", "scattered", "loose", "sporadic", "dispersed", "rambling", and "chaotic". Each of these words can be used to describe something that is not organized or uniform in shape or placement. When using these synonyms, it is important to consider the context in which they will be used and choose the one that best fits the situation.