(noun)-The name you give one of your friends who you caught going through your fridge and eating a jar of olives with his bare hands. He is not necessarily your closest friend, but he just always manages to be where you are. This can also apply to a friend who does something stupid, or you just want to insult.
Jake: Wtf are you doing!?
Steve: Yoo you mind?
Jake: Put the olives down and get out of my house.....fuckin oliveheimer.