Wiktionary
n. 1 A murderer 2 An animal that kills humans. 3 Someone who habitually seduces men.
Wikipedia
The Man-Killer (real name Katrina Luisa Van Horn) is a fictional supervillain in Marvel Comics' universe.
Usage examples of "man-killer".
Hector has tensed to rush the man-killer but now the Trojan hero freezes, his face turning into a mask of confusion.
The Regulus, Iain, already in cold fury against the Balderites because of the losses they had cost him in his mainland holdings, especially in the Inverness country, called upon his vassals at Lewis, Skye, and Uist for their famous, infamous, dreaded Scots-Dane axementhose professional man-killers known in Ireland as galloglaichesand remorselessly held his own at Islay against the Kennedys and the rest while he awaited the arrival of enough force to counterattack.
I had also learned that she was not a vicious man-killer but a spirited saddlebred, sensitive to my hands, who responded with instant obedience to my clumsy movements.