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To rub your genitals in a T-motion across a man/woman's face while taking a dump simultaneously. This technique is not advised for beginners, intermediates or those with serious heart conditions.
Me: I twubled the shit out of this girl last night.

Friend: Aw sweeeeeeeeeeet, I totally love Twubling.
by Sextips9872356 July 02, 2011
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