Noun, German. Literally, a raisin crapper. Someone who is so obsessed with nitpicking and petty B.S. that they spend all their time crapping raisins.
Manager - You've got to drop everything right now and finish your effort certification, your time logs, and your TPS reports.
Surgeon - Can't you see I'm performing trauma surgery here, Korinthenkacker?
Manager - I don't care, it's my ass if you don't do it.