2
Someone who is crazy and/or has lost their mind and acts like a damn lunatic. Someone you should avoid at all costs as they may be a harm to yourself or others.
Let's cross the street. We don't want to walk next to that wack job on the corner who's walking in circles and talking to himself.
by Phoebe Beaver August 04, 2005
4
An ecentric individual prone to odd behavior, ie. sitting and rocking, twiddling thumbs, mumbling incessantly about helicopters, and outbursts of lewd indecent exposure
by Joceppi August 04, 2003