P.I.X.Y.: Person Intended for Xenocide and Yelling :trust:

Some others I tried out :pop:
S.A.P.D.: Synthetic Android Programmed for Destruction

A.R.P.D.: Artificial Robotic Peacekeeping Device ... awesome

F.B.I.: Functional Biomechanical Individual
A.R.G.O.N.A.T.H.: Artificial Robotic Guardian Optimized for Nocturnal Assassination and Thorough Harm