Definition of murder-mongering in English:

murder-mongering

Pronunciation /ˈməːdəˌmʌŋɡ(ə)rɪŋ/

noun

rare
  • The purveying or dissemination of news or stories about murder.

Origin

Late 19th century; earliest use found in The Speaker: a review of politics. From murder + mongering, after murdermonger.