A fifth of a gallon of liquor. Technically it is around 757mL, but fifths are sold in bottles containing 750mL.
Terry was sippin' on his fifth of Taaka
by Terry Samson December 02, 2003
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750 milliters of a liquid, the term is almost always used in reference to hard alcohol. (i.e. gin, vodka, rum, whiskey, triple sec, etc)
I have a fifth of Jack Daniels in the freezer. Its safe because the high alcohol content keeps it from freezing.
by Ryan Thompson July 06, 2004
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a fifth of a gallon, or 4/5 quart: approx 750 ml.
i drank a fifth of 151 lastnight, i think...
by andrew December 09, 2003
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Beethoven's Symphony no. 5

It's like calling Yale "New Haven" to separate people who are familiar with the composer (or the Ivy League school) from those who don't.
You: "Yeah the fifth was amazing of course but I really love listening to contemporary composers like Phillip Glass"
Them: "The what?"
by Vagabond Sailor November 27, 2017
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means "what if" things were different, how would it be if things changed.
Coined by Bay Area rappers like Mistah F.A.B. and E-40
if it was no guns most of yall would be punks
its the truth, think about it playa
"If if was a fifth then we'd all be drunk. If it was no guns most of yall would be punks. If this was a class most of yall would flunk. If if was fifth then we'd all be drunk."-Mistah F.A.B.
"if if was a 5th then i'd be diggin in yo girl instead of lookin at her, if if was a 5th."-E-40
by staystrong keep ya head up December 20, 2006
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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
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A one fifth of a gallon bottle of alcohol, or 4/5 of a quart. Previous to the US converting to the metric system, hard liquor was sold in 1/5 gallon bottles. Slightly larger than the current 750ml, but still used to refer to a 750ml of booze
Pick me up a fifth of Jim Beam.
by CK454 December 30, 2008
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