Top definition
A rib splitter is a tool made and used in prison. It's a shank that is quickly thrusted into the ribs around the arm pit region deep enough to split the ribs and hopefully penetrate the lungs. This will deflate the lungs and ensure a quick effective shank.
Tony shanked levi with a rib splitter for not finishing him off.
by youneek August 30, 2008
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