hex: n. 1. Short for hexadecimal, base 16. 2. A 6-pack of
anything (compare quad, sense 2). Neither usage has anything to
do with magic or black art, though the pun is appreciated and
occasionally used by hackers. True story: As a joke, some hackers
once offered some surplus ICs for sale to be worn as protective
amulets against hostile magic. The chips were, of course, hex
inverters.