Top Definition
To apply peanut butter to your penis for masturbation or in order to give the reciever of your penis a nutty surprise/treat.
"The girl was surprised when faced with the Nutty Banana rather than the penis she had expected."


"Dude, last night I was home alone, I did a Nutty Banana!"
by Nuttybanana January 11, 2010
9 Words related to Nutty Banana
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