A phrase used to describe a pregnant womans breasts. They are typically very large tits that just hang off her chest and jiggle as she walks cause they are just full of milk.
"Damn look at mommy udders!! I wanna suck milk right out of them!!"

"I would fuck the milk right out of her mommy udders!!"
by Benjamin the Conqueror May 31, 2008
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Huge, jubbly, tig o bitties, no mater what you call them, they are breast that just hang off that milf's cheast. So tasty looking that you want to suck milk out of them.
"Man! Look at that milf's Mommy Udders!! I would fucking suck milk right out of them!!
by Spycy Taco July 22, 2008
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