A division of time in which an hour feels longer than expected, so named due to time flying by when you are fucking.
by After Eights June 27, 2010
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A fucking hour is a fraction of time shorter than an actual hour. You know its like when a dude thought that he was fucking for an hour but it was like ten minutes, thats a fucking hour.
"We went across town for some food, I swear it felt like a fucking hour but was really just 20 minutes"
by mpaarating August 02, 2017
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