Top Definition
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 04, 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 alarm that will surely wake you from a pleasant dream and a deep slumber early in the morning so you can go to work at your crummy minimum wage job.
hey Al, wasn't the sound of the shitclock this morning about annoying as hell?

Al, "yes it was"
by Z=dog February 14, 2010

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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 07, 2005

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