Shank comes from 2 words joined together, creating a sick
fetish type act.
When one SHits in his hand and wANKs = SHANK.
Could possibly
mean they are homosexual.
Im not just having a wank, Im having a shank!
Hey man, I ran outta lube. Thats
ok you can
always shit in your
hand and wank or have a "shank" if you like.