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Short for "Nalgene." Nalgene's are expensive, indestructable 32 oz. water bottles, often used for discretely transporting alcohol around in public.
Me and my friends are going to Nalg it up at the pool tonight at midnight for my birthday.
by nalgdrinker May 14, 2010
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The oily substance that builds up under a mans balls and between his thighs.
The looker room had the smell of nalg.
by berniebuda January 12, 2011
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