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When a couple, usually a promiscuous gay couple, is engaging in intercourse and the index finger and thumb are inserted into the anus of either partner, and then used to apply a "Titty twister" to the opposite partner. (Usually done while fingers are dripping in feces for full effect.)
"I gave Dave the best yorktown streetsweeper he's ever had - his prostate practically burst."
by Paul F January 12, 2004
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