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refers to a persons asshole in a sexual way.
My girlfriend was so horny last night, she let me boink her no no hole.
by Bilbo the dildo January 06, 2009
the place where you are not allowed to be touched by strangers or creepy family members when you are a child.
Uncle Morty got in trouble for touching Tommy's no no hole in the game closet at the family reunion.
by jrubadub March 11, 2010