Someone who is addicted to or uses cocaine that is in a smokeable form (Free-base). Free-base cocaine is much like crack in that they are both fat soluable and can both be smoked.
1. Someone who smokes freebase stimulants, particularlycrack cocaine, but also methamphetamine.
2. An individual who lacks commonsense, presence of mind, or conscientiousness.
1. Check out the homeless basehead passed out on that bench.
2. You silly fuckin' basehead, you're looking at the map upside down!