terminate someone with extreme prejudice

terminate (someone) with extreme prejudice

To kill someone without hesitation, mercy, or discernment. The general warned the rebels that they must either surrender or be terminated with extreme prejudice. We must terminate these terrorists with extreme prejudice to ensure the safety of our country.

terminate someone with extreme prejudice

murder or assassinate someone. euphemistic, chiefly US
The expression originated in the terminology of the Central Intelligence Agency in the 1970s.