a calming practice that you use if you are over excited. Also it is a vibe a person or thing can give off.

when you're hungover as shit after a spending a night drunk as a skunk

When something (normally and object such as food or old clothes) gives off such a terrible sent it can cause a headache. In certain cases one can become immune to the scent and then harass their friends with the scent when they enter a room with the foul stench present.