An emergancy procedure you perform when you are in an urgant rush to stop defecating. The act of severing one end of a turd from it's other half.
Dude I was taking a dump but someone pounded on the door so I had to decrapitate it.
by Brodsterdex May 29, 2010
To threaten rip off someone's head and shit down their neck, "Duke Nukem style".
If I ever catch you making eyes at my sister again, I will decrapitate you.
by enzo_gee August 15, 2007
to go from good to bad, from clean to dirty, basically to fuck up.
that old house is all decrapitated from the weather
by christian February 24, 2005