the smelly substance that collects in one's belly button
My belly button pudding that I scooped out of my belly button straight up stanks!
by James Booker December 13, 2007
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To insert a "outey" or an belly button facing outward into a woman's uterus
She gave me a belly button rub and it felt real nice
by Canidoiy September 27, 2017
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belly-button lint is an accumulation of fabric particles that collects in a guy's navel and smells like cum.
I try to clean up my belly-button lint when I shower in the morning.
by USAF Cadet August 21, 2021
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When you are going down on a girl and you are at the belly button point and is smells funny so u aborth the mission and turn away
(girls name) ask me to go down on her so i started and by the time i was at the belly button it smell nasty so that i had to abort it the misson.

the Belly Button Rule!
by Belly button abort February 10, 2011
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The assault that occurs when someone repeatedly and unwarrentedly sticks their finger in your navel.
My partner kept trying to belly button fuck me... He ended up with a bloody nose
by Nc9517 January 4, 2015
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when a guy cums in a girls belly button, then puts tape over it, then 2 weeks later, he eats it out of her belly button
"oh man, my girls belly button butter last night was so good! my cum is amazing!"
by Chelsea K October 19, 2007
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quite simply, the rule that states if one sees a girl wearing a top which shows her belly button (or more) in public, belly button rule must be declared and girl is labelled slut.
"I can see her belly button with that tiny top on"
"belly button rule, she's a whore"
by wayt00mainstream August 13, 2012
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