Subtractor

[PussyCat]

An [individual] that makes a situation [horrible], someone who cannot possibly help out, a negative luckless person, a [minus] of life.
Someone who either directly or indirectly kills and [maim]s people, a person that is a general [menace] of calamitous [mishap].

[Cami]

One of the two numbers you use in a mathematical subtraction sentence. [subtraction]