A boner that is extra long and hard.
"Wow is that like a superboner?!"
by Capernicus January 14, 2004
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a superboner is a disease that sometimes can be given to you by a smitty or you just get it anyway
what happens when you get this disease is you all you body parts get aroused or erect and eventually you will get hard to anything you see which makes your bones harden and you start to t-pose randomly you will stay like that for awhile

until you stop seeing the object you got aroused by
guy 1:shit bro i got raped by a smitty yesterday but the doctor said i got a superboner

guy 2: fuck
by yelsuiscool December 5, 2018
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When you go so hard on a girl she screams it is over 9000.
I just fucked my girl and she was like ,"superbone me Goku."
by Paparagu July 5, 2017
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