When someone gets extremely angry and loses their temper, we often say they "lash into a fury." However, there are many other ways to describe this type of outburst. For instance, you could say that someone "flies off the handle," "blows their top," "goes bananas," "throws a fit," or "has a meltdown." Alternately, you might say that they "explode with rage," "seethe with anger," "boil over with frustration," "burn with fury," or "erupt in indignation." Regardless of the exact phrasing you use, this type of emotional display is often overwhelming for the person experiencing it, and can be distressing or concerning for anyone in the vicinity.