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1.
Whatever time it is when you realize it was past the time you were supposed to be anywhere.
Well, that was fun. What time is it? Oh, it's Fuck O' Clock. Fuck!
by Harold Q Poppinjay January 14, 2011
 
2.
Time to fuck!
Guy: Guess what time it is?
Girl: uhh 630 in the morning?
Guy: nah! its fuckoclock!
by Ballzto tthe walz November 17, 2010