Definitions by casey kasem

Pinkie surprise 

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.

Pinkie surprise by casey kasem May 18, 2010