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the term used for describing the suprising presence of an erect penis against ones lower back.
Ian surprised Susie in the post office queue by giving her a back boner.
"Do you need a Jiffy bag for that or shall we send it guaranteed delivery?"
by Shakedown August 31, 2007
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2
When your spine gets stuff and hurts
Man I ran so hard today I got a Back boner
Well there’s no lube to ease that Back Boner
by Fudgedragon2005 January 15, 2019
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