Top Definition
A miracle boner is an erection the production or existence of which has no rational basis in fact or circumstance. More or less, it is the ability to achieve and maintain an erection despite reprehension, disgust, fear, and other things in the like.
John would haver never successfully slept with that badger to completion, while at gunpoint, if not for his miracle boner.
by SALUKIDUO April 03, 2011

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