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 3, 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 6, 2004
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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 21, 2006
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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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A fifth is a US measurement of alcohol equivalent to 25.6 shots; 25.6 ounces; 1.6 pints; 0.8 quarts; 0.75706 liters.
After 26 shots of tequila, Craig had consumed about a fifth of alcohol. Then he died.
by Take-One June 6, 2017
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1 a fifth of a gallon of liquor aka 26 ounces or two-six and 750mL
2 a gun more specifically refering to a .45
Im off a fifth of that hennessy
Im strapped with my fifth
I got my four fifth
by Chrome February 23, 2006
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Noun - A nickname for a person who you've slept with that you needed a "fifth" of liquor to sleep with and you want to plead the "fifth" the next day.
I hit it with that guy across the bar, totally a fifth.
by gobird November 20, 2009
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