slasher

viiltoveitsi

viiltäjä One who slashes.
A machine for applying size to warp yarns.
puhekieltä A horror movie with graphic blood and violence.
One who self-injures by cutting.
A tool for cutting undergrowth.
1992, Melvin R Lansky, Fathers who Fail

(..) an overdoser, binge drinker, slasher, or sexually impulsive person, is found to act impulsively following some sort of change in a relationship.