Popularized in the 1860s, Generals of the Marine Corps were in distress by a phenomenon they (denoted) kdc.
The distress and pensiveness was caused by Commanders when they PTSD caused them to not care about the world. Simply put, Kommandos (k) just did not (d) care at all (c). Which usually trumped the troops morale greatly.
To this day, distressed members use this word to describe their friend's negligence to a person's return home.
I did everything I could to get his attention, but k d c..
Dilation and curettage (D&C), a surgical abortion procedure, is the last chance to keep the little bastards out when Plan B (levonorgestrel, a morning-after pill for birth control) isn't enough and has already been tried.
Already tried Plan B? Then you'd better have a Plan D&C!