Term used by the homeless Philedelphian Willey James Huff in conjuction with rackem rack. The meaning is unknown but is still hilarious and can be seen in a collection of videos on YouTube.com.
Racke' rack, rackem' rack, RACKBAR!
by Pattyblades November 14, 2006
A rackbar is a person who is making a fool of themselves or is just naturally an idiot or moron.
"'Doz, you're such a rackbar you fucking faggot."
by duduecefive May 15, 2007