15
When someone is late for an event that is already planned
Guy 1 - "Bro, where the fuck is Dan? We gotta go now, or we'll miss the fight."
Guy 2 - "I don't know, but he better not clockblock us..."
Guy 3 - "I'll kick his ass."
by 97NoRtHsTaR December 13, 2009
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16
When you try to play Playstation 3 on 1st of March 2010, and the hardware clock thinks it's a leap year, and that the date is 29th of February, the playstation clock-blocks you.
This is also the bug that caust the apocolyPS3 day.
"On 1st of March 2010, the Playstation 3 clock-blocked almost every Playstation 3 in the world"

Gamer #1: "Dude, I can't play on my PS3!"
Gamer #2: "Oh, you got the old PS3?! Well, it's clock-blocking everybody!"
by BlastMaster4000 March 02, 2010
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17
The ability of upper management at a company to habitually prevent employees from working overtime.
"I wanted to work some extra time today to get my job done finally, but Mr. Wethers is going to clockblock me again."
by Guy Fresco January 25, 2008
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18
A subcategory of cock block. Things are about to get spicy, but then there isn't substantial time to get it in.

Also sometimes used to refer to not being able to see a clock. However, this is not the appropriate usage of the word, and should be discouraged.
Jim- "Stacey and I were about to go all the way, but then I realized I had practice in ten minutes."
Henry- "Man, you got clock blocked."
by S'morgasm January 24, 2011
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19
When an obstacle or another person is obstructing your view to where you can't tell what time it is.
Will is standing in front of the wall clock, man he is such a Clock Block.

Ben stole my watch, what a Clock Block.
by DeathofMay October 13, 2010
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20
To avoid fixing the phone time display on an avaya phone because, seriously, don't you already have a watch.
Clockblocking is when the users say, hey fix the clock on my phone because I only have like 100 other clocks to look at and the admin, god of the world, as we all know, was like, sure, we use a priotity from 1 to 10 with 10 being the best and you are a negative 5 with a 0 being the score for random office chat or coffee breaking.
by YourPepPep January 20, 2011
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21
A moron who blocks the timeclock because he's waiting for EXACTLY 8 hours from when he clocked before clocking out for fear of losing pay.
If that idiot wants to wait until exactly 7:00 to clock out, he needs to stand aside and not be a clockblock.
by Bryan Fox April 18, 2006
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