Zanbar is slang for xanax. It is also called a bar because the pill resembles a bar, it can be cut into four pieces, but you take at least 1 whole bar to get fucked up. Zanbar relaxes you alot and after a few hours you will fall asleep. It is also very addictive but makes you feel great!
im rolling on them zanbars i took at lunch!
by brainrain June 07, 2005