A state of being that occurs during an extremely boring lecture. It happens when you keep staring at the clock for so long that your eyes appear as clocks.
Dude, you looked so clock-eyed during Dr. P's lecture on the digestive system of a raccoon. How long was it?
Observed, recorded, noted. Possibly related to determining the speed of a car by using a stopwatch to time its travel between two fixed points, such as "He was clocked doing 60 in a 45 zone".
"Hey that guy keeps eyeballing your iPod." "Yeah, I already clocked him."