slasher

slash +‎ -er

slasher (plural slashers)

1. One who slashes.
2. A machine for applying size to warp yarns.
3. (informal, film) A horror movie with graphic blood and violence. A slasher movie
   • 2017 October 27, Alex McLevy, “Making a Killing: The Brief Life and Bloody Death of the Post-Scream Slasher Revival”, in The A.V. Club‎, archived from the original on 5 March 2018:

     Realizing there was a fresh market for a style of movie that studios had written off as niche material, Scream’s gonzo profits ushered in a wave of subsequent slashers trying to capitalize on a new generation’s discovery of the subgenre, as Gen Xers and Gen Yers alike learned (or re-learned) the fundamental pleasures of a good old-fashioned murder spree by a crazed killer, supernatural or otherwise.

4. One who self-injures by cutting.
5. 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.

• slasher movie

• Haslers, Hassler, Lashers, ashlers, halsers, hassler, lashers