Shank

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.