Any of the following may be used:
Except when it's not...
Well.. Not on this earth. Respectively.
NOTE: Coup de graces may not be utilized in tandum and/or against one another in the same argument.
Nakama: Yes they do.
Dave: No they don't.
Nakama: Yes they do.. It's science.
NOTE: Nakama wins argument via sweet delivery of a coup de grace.
It can also be used figuratively to refer to a finishing touch of any sort.
While the correct pronunciation is similar to "coo de grahce". It (in english) is usually pronounced as "coo de gra"...with the final "s" sound being left out.
George had never had much luck with these matters, and
after all that'd happened, losing his wallet was the coup de grace that spurred him to tears.