What is panties in a bunch meaning?

The idiom "panties in a bunch" refers to someone becoming excessively upset or angry over a minor issue. The phrase is often used to suggest that the person is overreacting or being overly sensitive. The phrase likely originates from the discomfort that can occur when underwear becomes twisted or bunched up, causing irritation and discomfort. The term is generally considered vulgar and offensive, particularly to women, and its use is discouraged in polite or formal settings.