employee 1: hey, you coming to happy hour today? we're going at 4:30  employee 2: i can't, my boss is a clock shark
a boss or supervisor that constantly watches the clock to ensure that the employee is present at work during office hours
"employee 1: hey, you coming to happy hour today? we're going at 4:30  employee 2: i can't, my boss is a clock shark" What is the definition of "clock shark"?