The phrase "ass over elbows" is an informal expression used to describe a bad fall or a complete tumbling of an individual. However, there are several synonyms that can be used to convey the same meaning. Some of these synonyms include "tumble", "plunge", "fall head over heels", "topple", "slip and slide", "take a header", and "go down like a ton of bricks". These phrases are often used to describe a moment of sudden loss of balance or a clumsy misstep leading to a bad fall. So, the next time you need to describe someone taking a bad tumble, consider using one of these synonyms for "ass over elbows".