Noun
Used other than figuratively or idiomatically: see baby, killer.
(slang, derogatory) An abortionist (all senses).
(slang, derogatory) A pregnant woman who receives an abortion.
(slang, derogatory, dated) A Vietnam War veteran.
Source: en.wiktionary.orgbaby killer
British propaganda postcard, entitled "The End of the 'Baby-Killer'" The loss of SL 11 ended the German Army's enthusiasm for raids on Britain. Source: Internet