hmmm all those are new terms to me..must be an england term or something..Oscar makes since since O can mean Oz as in ounce of 28 grams but never heard of a "bar" of drugs makes no sense to me ..even a box= kilo is wierd...Oz or O or a zone =ounce 28g..heard that....Big eighth=125 grams(1/8 kilo)...1/4 key kilo 250 grams etc...heard bird for a kilo brick ..heard brick for a kilo ..heard a chicken = kilo,,,guess box makes as much sense as a bird = kilo..new slang to me in USA tho...