Banana-Boner 

When a male has such a large erection, (Particularly during sex), that his penis begins to curve upward to resemble the shape of a banana.

Last night was so great, that I got a banana-boner.

Banana-Boner by SE123 April 3, 2014

banana boner 

A boner that curves upward, resembling an upturned banana. Legend has it it's especially good at stimulating the elusive g-spot on the female anatomy, but I wouldn't know because I have a straight boner.

The banana boner is a mystery! How can a curved biological structure be so rigid?!

banana boner by Darren Key July 6, 2005

banana boner 

something late 90's and early 2000's highschool kids used to say a lot. its when a male uses a banana and puts it in his pants to trick the female thinking it's really his

sydney: man dylan's good!
bria: wdym it's a B.B
sydney: what's that?
bria: it's a banana boner
sydney: so it's not really his?
bria: nah

banana boner by carrotsandparrots April 5, 2020

Banana Boner Jammer 

When you have a Boner, have your female accomplice smack your cock with a Banana until the Boner goes away.

Dude, I had a boner for like 4 hours for no reason and it hurt so I had your mom give me a Banana Boner Jammer .

Banana Boner Jammer by FatalBuddha July 19, 2009