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3.
A boner that is extra long and hard.
"Wow is that like a superboner?!"
by Capernicus January 13, 2004
 
1.
A boner so strong and substantial that's it utterly incapacitating. It's the kind of boner dreams are made of.
Sometimes when I was a little kid they would just pop out of nowhere and I became completely immobile.
by crazy b February 10, 2005
 
2.
A condition where your penis becomes excessively swollen with blood during an erection. Signs of a super boner include: Pain, extra rigidity, increased shaft length and the inability to ejaculate. It has been rumored that the super boner increases stamina as well, but this has yet to be confirmed.
She gave me a super boner so bad it wouldn't go away all night. I still hurt bro.
by Lil_Buddy December 02, 2009