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The act of inserting the tip of your pinkie finger into the anus of your partner during sex. Usually done without preface, thus a surprise.
-Hey I heard you had sex with Chad for the first time last night. How was it?
-OMG it was great. Just as I was reaching my climax, he gave me the pinkie surprise. I've never had a better orgasm.
by casey kasem May 17, 2010
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