hey you wanna play kkm tonight? *starts playing* okay dude, Josephine, Alex, or Katherine? "Kill Alex, kiss Josephine, & marry Katherine cause she's fine"
An abreviation for knock knock mother fucker. Used in place of ringing a doorbell. Generally sent via text, but sometimes spoken aloud when entering a room.
I received a text saying kkmf, so I knew John would be walking in the door soon.