Maybe the term was contractual / legal.
		
		
	 
Or maybe it`s suppose to be simpler then all that, since drop can also just be
:  to let fall :  cause to fall ( to let slip)
a :  give up 2, abandon <drop an idea> <drop the charges>  
b :  discontinue <dropped what she was doing>  
c :  to break off an association or connection with :  dismiss <drop a failing student> 
a :  to utter or mention in a casual way <drop a suggestion> <drop names>  
b :  write <drop us a line soon> 
a :  to lower or cause to descend from one level or position to another  
b :  to cause to lessen or decrease :
and dead could just be
(1) :  lacking power or effect <a dead law> (2) :  no longer having interest, relevance, or significance <a dead issue>  
b :  no longer in use :  obsolete <a dead language>  
c :  no longer active :  extinct <a dead volcano>  (inanimate, void of life or spirit)
d :  lacking in gaiety or animation <a dead party>  
e  (1) :  lacking in commercial activity :  quiet  (2) :  commercially idle or unproductive <dead capital> 
 a :  not running or circulating :  stagnant <dead water> 
b :  not turning <the dead center of a lathe>  
c :  not imparting motion or power although otherwise functioning <a dead rear axle>  
d :  lacking warmth, vigor, or taste 
a :  absolutely uniform <a dead level>  
b  (1) :  unerring  (2) :  exact <dead center of the target>  (3) :  certain to be doomed <he's dead if he's late for curfew>  (4) :  irrevocable <a dead loss>  
c :  abrupt <brought to a dead stop>  
d  (1) :  complete, absolute <a dead silence>  (2) :  all-out <caught it on the dead run> 
It would be nice to think that it all applies to the PTB and it is the whole corrupt system that "dropped dead" in April.  
