Egg size testicles that are large like those on a moose, especially a pair that is extra droopy.
person 1: Roscoe was tea bagging me the other day and his balls were so big they wouldn't even begin to fit in my mouth.

person 2: Oh, you didn't know he had moose nuts?
by The Tea Bagger December 21, 2010
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when your nuts hang down to your knees due to a lack of semen.
the man pulled down his pants to moon us, but all we saw were his moose nuts.
by Ipodium November 7, 2007
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