When a woman has large breasts due mostly to the fact that she is fat rather than being actually endowed. This is visually determined by the protrusion of stomach below, and barely less far, than said fat tits.
"Dude, that chick has HUGE boobs!"
"No, she has fat tits. Check out that gut. That is not cool."
by Spiden August 5, 2007
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A woman who has large breasts, but the size of her breasts is due to the fact that she is overweight, not becuase she would be naturally busty.
Yeah, Kimberly got some big titties, but they fat tits man, you take a look at her stomach?
by Beemer July 9, 2007
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Any male suffering from obesity in the tit region.

Plural: Fat-tities
Fat-tities are entirely capable of doing the truffle shuffle.
by ASDFGQASDFG August 17, 2005
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A boy with abnormally large tits, usually not well rounded, but pointy. (see moobs)
sean lavelle goes to the market to deliver the milk
by cole March 13, 2005
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There is a carbon-based bipedal lifeform that resides in Shenandoah Valley Governor's School that has gynecomastia, most likely from severe obesity. He is often seen scouting the jungle for parrotts and other frizzy haired art students. In more common terms, gynecomastia is also known as having 'fat tits.'
"Hey, look! It's a Fattittius Maximus and he's flocking with the Parrotius Annoyingashellius!"
by The Oxymoronic Paradox January 10, 2005
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