"Hitting switch" is an idiomatic expression primarily used in informal contexts. It refers to the act of abruptly changing one's attitude, behavior, or demeanor, often characterizing a sudden shift from being calm or composed to becoming angry, aggressive, or confrontational.
Metaphorically, "hitting switch" can imply triggering a sudden change or transformation in one's mood or temperament, akin to turning on a light switch. The term emphasizes the swift and drastic nature of the change, as if a switch is being flipped, symbolizing the immediate transition from one state to another.
The phrase is frequently used in situations where an individual unexpectedly reacts or responds in an intense, explosive, or unpredictable manner. For instance, someone might be calm and collected during a conversation, but then suddenly "hits switch" and becomes extremely angry or defensive without apparent warning or explanation. Sometimes, this phrase is used to describe a person who tends to display extreme and contrasting emotions.
The origin of the expression may be rooted in the association of a physical switch with the action of triggering or activating something instantly. By using the phrase "hitting switch," individuals aim to convey the notion of a sudden and rapid shift in behavior or mood, often catching others by surprise.
