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.