Impenstein
A person who is being BEYOND impish. An Imp is usually defined as a small mischievous devil or sprite. Impenstein can be used as an insult to how another person is acting. An Impenstein is usually doing something stupid or bad. The word can also just be used if you are angry at another person.
You impenstein, thats a horrible idea.
Stop being an impenstein.
Stop spawn camping you impenstein!