G.R.I.M.J.A.C.K.:
General Robotic Individual Manufactured for Justified Assassination and Ceaseless Killing

Found it here

Alas, "shadwickman" was too long for it so I had to settle to just "shadwick".

S.H.A.D.W.I.C.K.:
Synthetic Handcrafted Android Designed for Worldwide Infiltration and Ceaseless Killing

It gives the same for the "C.K." as you.

D.D.A.N.B.E.:
Digital Device Assembled for Nocturnal Battle and Exploration

W.I.L.L.I.A.M.: Wireless Intelligent Lifeform Limited to Immediate Assassination and Mathematics :P

@ William
And mathematics? How very threatening :P

C.S.U.R.F.E.R.: Cybernetic Synthetic Unit Responsible for Fighting and Efficient Repair ;)

How pitifully sad and pathetic of a cyborg name:
J.L.M. - Journeying Lifelike Machine

I have no purpose but to wander and appear lifelike? :(

Haha, but this one's not too bad:
J.I.M.M.Y. - Journeying Intelligent Machine Manufactured for Yelling

Who would manufacture a machine just to yell?

Versatile Mechanical Android Normally for Efficient Sabotage

[D.I.T.Z.: Digital Immediate Troubleshooting Zombie]
eeeek i am Zombie

Also

[M.I.K.A.Y.L.A.: Machine Intended for Killing, Accurate Yelling and Logical Assassination]
yay killing yelling and assassinating

N.I.E.K.: Networked Individual Engineered for Killing

Yup, that's me.

I just had to look:
O.B.A.M.A.: Operational Biomechanical Android Manufactured for Assassination
M.C.C.A.I.N.: Mechanical Cybernetic Construct Assembled for Immediate Nullification
P.A.L.I.N.: Positronic Artificial Logical Infiltration Neohuman
B.I.D.E.N.: Biomechanical Individual Designed for Exploration and Nullification

Patterns emerge

So I looked at this and found:
G.R.I.M.J.A.C.K.: Grim, Ravenous, Investigator-Mangling, Jogger-Abducting Creature from the Kingdom

S.K.Y.D.I.P.L.O.M.A.: Synthetic Kinetic Youth Designed for Immediate Peacekeeping, Logical Observation and Masterful Assassination

this actually Suits me ;)