Blow a gasket is an expression commonly used to describe a person who has lost their temper or become extremely angry. There are a variety of different phrases that can be used as synonyms for this expression, including "fly off the handle," "lose one's cool," or "flip out." Other phrases that can be used in this context include "see red," "go ballistic," or "hit the roof." Regardless of the phrase used, it is clear that the person in question has become very upset and is no longer in control of their emotions. If you or someone you know has a tendency to blow a gasket, it may be helpful to seek support from a therapist or counselor who can offer coping strategies and techniques for managing anger.