a clock that ticks to the point of a major downside in your life. A millstone over your head in other words.
Shit-clock's ticking, Bubbs, for you, your shit-rats, and your shit-turd friends! The shit clock is diffidently ticking at my job, I think they will fire me on Monday.
by Nicklegit April 4, 2015
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the amount of time you're in the restroom before people realize you're taking a shit.
I was at this chicks house and I really had to shit. I tried to beat the shit clock but I didn't make it. she totally knew.
by Harold Balzonya November 30, 2014
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The amount of time that elapses when you get the urge to have a crap and the time you actually get down to business.
The shit clock is ticking--time to hit the can!
by amadeus April 7, 2005
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noun. (an addition to "The Shit List")

This is any kind of shit that you take while you are punched in (clocked in) at work. Lunch hour and coffee break shits do not qualify.
"Thought you might have fell down the toilet since you took so long in the bathroom?"

"Oh no, I just needed to take a nice "on the clock shit"!
by jamminspacey January 24, 2010
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Someone who putts in minimal effort, wastes time. people who do not participate.
in a classroom setting, a shit clock is someone who does not take interest in the class.
Jeff didn't contribute anything in that meeting, he's such a shit clock!
We all had to stay late because of that shit clock!
They didn't pass because they were being such shit clocks.
by LuckyLock August 28, 2018
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