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English definition of “stiffy”


noun [C]     /ˈstɪf.i/ UK offensive
an erection (= when a man's penis is harder and bigger than usual and points up): to get/have a stiffySexual activity in generalPhysical and sexual assault and abduction
(Definition of stiffy noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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