A term referring to the lacerated, sorry state of one's hands after working inside a computer for a while. They range from little nicks to those sinister deep gashes that you barely feel at the time, and only notice when you spot the drops of blood on the hardware you're trying to install.

This is especially a problem with old PC cases. Watch out for:

- the edges of the case when you're jamming it back on (ow!)
- the solder spikes on the bottoms of cards (poke poke!)
- those rail things that you slide the case on. (nasty!)