A girlfriend who is very controlling, calls you on the phone all the time just to see if you are doing something she doesn't like, and wants to go through all your belongings to look for trace elements of other females.
EXAMPLE 1:
Person A: dog, is that your girlfriend calling you again?
Person B: *sigh* yeah, she's been bitching at me for the past week!
Person A: man, you don't need that robocop!
EXAMPLE 2:
*ring ring*
Guy: Hello?
Girl: Hey, where the HELL have you been? You were supposed to be home an HOUR ago!!! If I smell any alcohol on you, it's over!!
Guy: Damn, I ain't need a Robocop anyways!
Girl: WHAT DID YOU JUST SAY??
A female in a relationship that constantly goes out of her way to find "dirt" on her boyfriend, by any means necessary. aka "patrolling". This female usually begins her search with the intentions of finding something negative so she can use it against the male during the argument that she inevitably starts. Coined by Kanye West in his 2008 single, "Robocop".
Ali (girlfriend): so you and Sarah look awful cozy in those pictures from this weekend that are on facebook
Tim (boyfriend): since when did you become a robocop?