wouldn't be caught dead

The phrase "wouldn't be caught dead" is an idiomatic expression that conveys a vehement refusal or reluctance to engage in a particular activity or associate with a specific person or group. It signifies a strong disapproval or lack of interest in something to the extent that a person would rather face death than participate or be associated with it. It is often used humorously or sarcastically to emphasize the intensity of one's aversion.