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someone who is being a flat out meanie face cockmaster by either stealing something valuable, talking behind your back, etc... usually the person who needs to be cockslapped to teach them a lesson.
frank: that guy josh is a fuckpants
jonny: i know dude we should beat his ass
frank: thatll teach him to hit my girl
by scotty dotty October 09, 2006
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A person who is easy, a slut, a whore.
That girl I was with last night was a total fuckpants.

You fuckpants!

He's such a fuckpants.
by SabbathJustSabbath December 24, 2010
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