Any person or persons afflicted with annoying or poor time management skills. Afflictions can include being chronically late, waking too early or late or obsessively checking the time on one's time piece.
Ali continues to wake up every night at 3:33 a.m. Instead of being supportive her friends just holler "CLOCKSUCKER"!
A person who totally wastes your time, with no concern for your life, since they have no life of their own. They are particularly annoying to sales reps, who cannot afford to waste time on non-prospects.
(from GlenGarry Glen Ross)
Williamson: Ricky, here's three leads for tonight.
Ricky Romano: Three leads!?! No, I count two! Patel, Ramadan Patel? He's a clock sucker! If Vishnu gave him a million dollars and told him to buy, he wouldn't!
The use of the word "blue" to refer to sexually explicit content was first recorded in Scotland in 1824. "Blue" meant "lewd" because prostitutes dressed in blue gowns.