Knuckleberry

The act of being a knucklehead and a dinglberry at the same time

When Jared broke up with his girlfriend after two years over a text message he was acting like a knuckleberry

by Mistah Crazy Grace March 21, 2009

Knuckleberry-Finn

Finger a girl who is menstruating until she climaxes on your hand.

She was on her period, but that didn't stop me from giving her a nice knuckleberry-finn. It took 20 minutes to wash my hands after wards.

by HerosTruth October 17, 2010