What is Kneebone?
1.
When someone is sucking you balls while you wank.
Man i got a mean kneebone last nite i kept punching her in the face by accident and then blew all in her eyes
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2.
When someone is sucking you balls while you wank.
Man i got a mean kneebone last nite i kept punching her in the face by accident and then blew all in her eyes
See 
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