When you're killing a person via shanking and your jacking off in the process.
Did you hear about McSplooge committing his 455th murder. I heard he did the shank and wank technique.
by Jascebalon July 09, 2016
using a sharpened tool to stab somebody, while then proceeding to insert ones phallus into the wound and fuck it
Henry fucked up real bad and got the shank and wank.
by lexlewis October 17, 2008