Radgie gadgie is a term that is commonly used in the North East of England to describe someone who is hot-headed and aggressive. While the term itself is quite regional, there are in fact a number of synonyms that could be used to describe someone with these same characteristics. Some examples might include words like hothead, hot-tempered, fiery, irascible, or even volatile. Regardless of the word used, however, it is clear that someone who is described in this way is not likely to be the calmest or most level-headed person in any given situation.