The phrase "most maddog" can be used to describe someone or something as extremely aggressive or reckless. Synonyms for this phrase include "wild," "crazy," "ferocious," "untamed," and "savage." It can also be used to describe someone who is incredibly angry or irrational, in which case synonyms include "enraged," "furious," "livid," and "incensed." Overall, the phrase conveys a sense of extreme emotion and unpredictability, suggesting that the subject is difficult to manage or control. It is a useful expression to describe a wide range of behaviors and emotions, and can be used in both formal and informal contexts.