Top definition
Someone who says complete gibberish. From the urban-english "whack", meaning crazy and "bar" meaning Isaac. It applies to those who talk about star formations having a profound effect on the world, religiously, as we know it. Wackbars tend to live around populated bus stops.
That wackbar preached to the back of my head for twenty minutes.
by Chris October 01, 2004
Get the mug
Get a wackbar mug for your boyfriend José.