1. slotter - Noun
2. slotter - Verb
(agent noun) Someone or something that slots (that is, makes slots).
(engineering, manufacturing) A tool used to make a mortise, or to shape the sides of an aperture.
Synonym: mortiser
(engineering, manufacturing) Such a tool that is much like a shaper but with a smaller ram, vertically mounted.
Coordinate term: shaper
slotter (uncountable)
Filth.
slotter (third-person singular simple present slotters, present participle slottering, simple past and past participle slottered)
(transitive) To make filthy; to foul.