A device that tells time; a descendant of the sundial, which was an ancient instrument that was used to tell time, employing the use of shadows and the sun. Today's clocks either come in the form of electronic, digital clocks with alarms; wall clocks powered by batteries that use the classic "hand" design; and watches of many designs and face colors, or has a chain connected to it and a click-closing lid, known as a pocketwatch. These watches are useful when you have to meet someone somewhere at a specific time.
1.) The clock on the wall says its 12:45.

2.) Are you kidding me? this watch is a classic! It's a Romex; they don't make Romex's anymore.
by Journey Fan October 26, 2004
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To complete all achievements there is in a video game.

To attain 100% completion in a video game.
I just clocked my new game.”

Friend 1: “I just passed COD4.”
Friend 2: “Well I just clocked it.”
by edu_cated_gamer July 12, 2010
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A typically circular device used to tell the time. It uses three sticks or "hands" that point to numbers and lines that were printed out on a layer of typically painted cardboard attached to the back. This uses about three of these "hands", one the thickest and shortest, (known as the HOUR hand), another that is slightly taller and thinner than the hour hand, (also the MINUTE hand), and the thinnest and longest one, (the SECOND hand). The hour-hand moves across each number or line each HOUR, the minute-hand each MINUTE, and the second-hand each SECOND. These are usually run by batteries nowadays, where the battery turns a series of gears to keep the clock going. Sometimes the clock displays the time directly, on a screen, these are known as digital clocks. You can find something similar displayed on your phone. But some are run by Pendulums! That's pretty cool. These come in many form-factors, too. These are useful machines with good purpose.
Person 1: How do I know when 8:00 comes?

Person 2: Simple, just look at the wall clock.
by Nebulon38 March 16, 2020
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A slang term used to describe someone's physical heart.
Cocked the Glock, one through your chest, stop your clock on a dime everytime they wanna flex, dummies runnin through they vest.

Used to describing a shooting victim:
"Son that cat's clock just got stopped yo."

Heartbreak, love problems, etc.
"His female be stressin his clock, gotta keep his dome straight he wanna hustle for me.
by Shy3000 July 25, 2010
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dang rob, i clocked the mess out of matt the other day
by Joey Muccio November 14, 2006
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