Definition:
(noun) - Sorry kids, we're not talking about the recreational activity that causes one to need to wear a turtleneck for several days. A hickey is printmaking slang for an unwanted, unplanned mark on a print. Hickeys are caused when a foreign element makes its way into the ink or onto the press. Dirt is the typical hickey culprit, but it's also a great idea not to eat, drink, smoke, brush one's hair or pick one's nose near the printing press. (Too much information, perhaps?)
Pronunciation: hih·kee