1 definition by Joelbone

Top Definition
An erect penis that has a distinct curvature to the left or to the right, or up or down, resembling a letter "J"
Dude, did you see the J bone on that pornstar's dick? It was curving way to the left!
by Joelbone March 10, 2008

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug