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If you break the promise you have to fuck the person that you made the promise with.
Paul: You have to fuck swear you won't tell anybody.
Janet: I fuck swear Paul
by spum778 May 08, 2016
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2
Like a pinky swear, but the promise is sworn through fucking, as the name implies. The promise has a much stronger bond than that of a pinky swear.
Yeah, Janice and I plan to fuck swear to each other that be would be together forever.
by Kago Kazuma October 04, 2016
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