Definitions by the alcoholic you can't live without

a fifth 

750 ml, enough to get any man wasted, unlike an eigth/pint which the some of the above people have mistaken to be a fifth, which is about 16 oz which is what youd be seeing people sipping off of. then theres the good old handle which is 1.75 liters

drinking dip spit didnt seem like a bad idea after drinking a fifth of vodka

a fifth by the alcoholic you can't live without November 3, 2005