How do you spell KMFDM?

I walk into Lucy’s daycare class to pick her up. One of the kids asks me what my t-shirt is. I say “It is a KMFDM t-shirt. You can read the letters: K-M-F-D-M. See?”
Later I figure out that the kid wasn’t pointing to the letters but to the picture on my t-shirt. It’s the Hau Ruck album cover with a stabbed, bleeding dude and a woman holding a bloody knife. Oh.