Top Definition
A slang term used to define women's breasts. Usually big ones which stand out and grab the attention of all guys as if they were checking out other guy's packages in a locker room.
Emily: "I'm going to punch you in your up-nuts."
Ashley: "Go ahead, they're still bigger than yours."
by 3rikasan February 10, 2012
8 Words related to Up-nuts
when your nuts are located just above the penis......(up-nuts)

usual found in public urinals.
Man 1 "dude have u noticed your balls are just above your penis"

Man 2 "don't fucking laugh dude, i've got up-nuts!!!"

Man 1 "Hahahahaha....powned"
by Venureva October 07, 2006

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