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A manual anal stimulation technique whereby the gentleman inserts four fingers, pinky at bottom... index on top, into the ladies rectum. The move is fully executed when the thumb has been inserted into the vagina and the man's hand is shook vertically as if introducing himself to the lady. A quick way to remember this technique is "four in the stink, thumb in her pink."
My new neighbor introduced me to his wife so to be polite I gave her a Long Island Handshake.

-or-

Nothing relaxes Suzy more after a long day at the office, than a nice glass of wine and a Long Island Handshake from her boyfriend.
by sonny chiba December 21, 2006
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