kid duty Share definition Flag A bullet-proof excuse for leaving work before the end of your scheduled shift, generally indicating that it is 2:00 o'clock in the afternoon and you would like to go have a drink. "Sorry, Boss, I have to leave early today, I've got kid duty." kid duty by Batchmann August 16, 2013 0 0 Get merch Get the kid duty mug. Buy Now — $32.95 See more merch