1. One who uses cocaine. I think he's a C-head—why else would he be acting so erratically?
2. One who takes LSD-laced sugar cubes. Yeah, I used to be a C-head, until I had a really bad trip.
1. n. a cocaine user. (Drugs.) How much money does a C-head need to get through the day?
2. n. an LSD user who takes LSD on sugar cubes. (Drugs.) Why don’t you C-heads grow up?