What Does "haengnojaem" (핵노잼) Mean in Korean?

This term is highly informal and considered strong internet slang. It's primarily used by younger generations (teenagers to those in their 30s) when communicating with close friends or online. Using it with elders, in formal settings, or with people you don't know well would be considered rude or inappropriate. It conveys an exaggerated level of boredom or lack of enjoyment, often with a slightly humorous or dismissive tone.