I was there for four nights which seemed perfect; others were there 12 which seemed like overkill.
Do you tell [people] the shocking truth -- that he was practically cut in half from the overkill of ammo fired into his body?
The same would apply to Democratic spending, too, of course, but the Democrats are less likely to hit the point of overkill.
An excess, esp of needed action: Going twice would be overkill, don't you think?
[1958+; fr the use of the term in connection with the killing potential of nuclear arms and arsenals]