The phrase "got dander up" is commonly used to describe someone who has become angry or annoyed. The spelling of "dander" is pronounced as /ˈdændər/ and refers to small scales from the skin of animals, such as cats or dogs, which can cause allergies in humans. The phrase likely originated from the idea that when someone becomes agitated, their skin may produce more dander as a result of increased blood flow. The correct spelling of the phrase is "got dander up," which should not be confused with "get one's hackles up," which means to become angry or defensive.
The phrase "got dander up" is an idiomatic expression used to describe a state of anger, irritation, or agitation that someone experiences as a result of a perceived offense, insult, or provocation. When someone "gets their dander up," it implies that they have become greatly provoked or annoyed, often accompanied by a rise in emotions.
The term "dander" refers to small flakes of dead skin or dandruff from animals, particularly from cats or dogs. Metaphorically, "getting your dander up" means that something has triggered a person's emotions, causing their irritation or displeasure to flake off and take flight, much like dandruff. It suggests that the person has reached a point of agitation or frustration where their emotions may be flying in an unpredictable manner.
This expression is often used when someone feels defensive, indignant, or angry due to a perceived injustice, criticism, or rudeness. It signifies a heightened emotional response and indicates that the person's patience or tolerance may have been exceeded. It is an informal phrase, commonly used in informal conversations rather than formal writing.
Overall, "got dander up" describes a state of heightened emotions, typically anger or irritation, resulting from being offended or provoked, and it is characterized by a metaphorical comparison to the airborne dandruff flakes.