Someone who gets high on adrenaline and possibly addicted to it. They usually supplement this addiction by doing activities that give them adrenaline rushes such as shoplifting, gambling, skydiving, stock market trading and possibly fighting.
People who have this very dark look in there eyes like Anger, but when gone there eyes kinda glow with like a blank look to them with gold in it kinda. but the moment who ever it is that they use to adrenalize emotionally is gone they run out of what they could call like a drug in a sense, hence the name adrenaline junkies.
apathy there like people who treat emotions and stuff like a energy, adrenaline junkies.