When something is so nasty or such a large turn-off that it makes you feel as if your junk is shriveling up into nothing and all your hormones are dying.
Matt: Dude did you see Mackenzie's mom over there trying to dance?
David: Ya, it gave me an inverse boner.
David: Ya, it gave me an inverse boner.
by itsnotc September 26, 2010
The event when, instead of the penis growing larger, the rest of the body gets smaller, thereby increasing the relative size of the shlong.
Not to be confused with a reverse boner.
Not to be confused with a reverse boner.
You see, Perry the Platypus, with my latest inator, I will obtain an unstoppable inverse boner: giving me the largest glizzy in the entire Tri State Area... relatively.
by Only_69 April 19, 2021
an inverse boner is when you get turned off so cringely that your (lady) boner goes inwards instead of outwards which will make you throw up a little
by Soerealisme December 29, 2022