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1.
The hardest, stiffest erection the human body can produce.
Don-Dude, check out that girl over there.
Frank-I know man, she's giving me a serious Frankenboner.
by Joe Comma August 29, 2008
 
2.
When the penis becomes raw and cut, one must chew the skin off their fingertips and place it over the wounds.
"Yo Tim, I got the worst frankenboner this side of the tracks."
by fodaloveofdabitty December 01, 2007