A murderer who slits the throats of victims.
An unscrupulous, ruthless or unethical person.
A three-player pocket billiards game where the object is to be the last player with at least one ball still on the table.
Involving the cutting of throats.
Ruthlessly competitive, dog-eat-dog.
Of or relating to a card game where everyone plays for him or herself rather than playing with a partner.
Used other than figuratively or idiomatically: see killer, instinct.
The natural inclination to do whatever is necessary to succeed (including extreme violence)