a personal scale used for measuring how wrong, horrible, twisted (essentially fucked up) a situation is.
Picking cum out of my ear in front of my class today is a 7 out of 10 on my fucked-up-o-meter.
by hahahaNSF August 28, 2009
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The time of day, typically in restaurants or cafeterias, between food rushes when service is very shitty and there's very little food selection. May also be used to describe times of poor service in other areas.
Tom: Wanna go get something to eat?

Jeff: No man, it's fuck you o' clock.
by Bebhanub September 11, 2010
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An unknown time of day. Can be past, present or future.
Hey Jack when are we leaving?

"At approximately ...fuck knows o' clock. Tomorrow."

What time is it?
"Fuck knows o' clock. Get a watch."

When did you fall asleep?
"Um, at fuck knows o' clock. I don't know!"
by HyperLynx September 23, 2016
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N. An idiot, a person of low intelligence, an asshole, a complete jack ass and a total waste of humanity.
Anita, you are being a real fuck-o.

George W. Bush and his Republican cronies are nothing but dirty fuck-os.
by ToddJustin June 7, 2006
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a jackass bastard that screws up the moment in any given situation
ie: way to go fuck-o! i almost had the "we gotta go girl" drunk enough for me to take home the slut in that group of chicks
by nick stebo September 24, 2007
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The amount of fucks being given at a single time.
I give zero fucks right now
Fuck-o-Meter confirmed zero fucks
by BigdickMceeee October 30, 2018
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Internal tool used to determine how many fucks are given in a given instance
Fuck o meter detects zero fucks
by Urban jackass June 1, 2018
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