the period that encompasses all times other than "no pants 'o clock" ( 5:45 to 6:45 am or pm) where pants and undergarments are intended to be worn by participants.
oh man, no pants 'o clock ended 24 minutes ago, i gotta go get some pants
by John Grizzlyhog July 14, 2008
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ungodly hour of the day; waking up with the chickens
What happened? why are you calling me? what time is it, chicken o clock in the morning?
by lotuspanda March 15, 2008
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When you need to hide an erection and you tuck it straight up into your waistband/beltline. The cock is similar to the hand of a clock at the 12-o-clock position.
guy: Hey, can you tell I have a raging hard on right now?

girl: What the fuck?

guy: Yeah, just did a little 12-o-clock tuck.
by rza00036 September 20, 2007
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Morning wood or a penis that is 9 inches when erect.
However, if you give someone the 9' o clock cock, you have sex with them in the morning
Roomate 1: "Hey there, you don't seem yourself, what's up?"
Roomate 2: "My dick.I have the 9' O clock cock."
by Sweptimus March 15, 2015
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When on tucks thier junk between their legs. Think Silence of the Lams. The opposite of the 12-o-clock tuck.
He was like that guy from Silence of the Lambs, remember, he tucked it in ... he did the 6-o-clock tuck.
by South Montain Spacedockers August 30, 2010
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An essay written frantically the night before it's due.
Jason: You know that eight page psych paper I told you about
Me: Yeah, did you do it?
Jason: yeah, it ended up being a shitty ten-o-clock essay.
by B.Alice October 20, 2009
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When you get a boner in public and flip your cock up into your waistband.(It feels good so try not to bust a load into your bellybutton.
"Dude I was in class and I was thinking about Gabby Bedard and Brandon Smith cuz I'm bi, and I got a boner so I did the 12 O' Clock Tuck. Works everytime. No one knew I had a boner. Except I did bust a load into my bellybutton cuz it felt good." said Tucker Kreis
by Brandoner Smith December 31, 2008
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