"Raising hell" is a commonly used phrase that refers to a person who is causing trouble or creating chaos. There are many synonyms for this phrase, such as "stirring up trouble," "causing a ruckus," and "making a commotion." Other similar phrases include "making a scene," "creating havoc," and "making waves." All of these terms imply that an individual is actively disrupting the peace and causing chaos. It's essential to choose the right synonym based on context and the specific situation in hand, as some phrases may be more appropriate than others. Regardless, they all describe someone who is causing disruption in an environment.