A term used to describe when a friend, family(sibling, etc.), or person is living off for free of the parent, or being treated with childly care. It doesn't have to be in terms of money, it can also be on a emotional scale, or what have you. Hence, "sucking on the tit".
older brother conversation with girlfriend:

Erika: Hey Jesse, how come you don't speak to your little brother anymore?

Older brother: I'm tired of Ezra not having a job and my mom taking care of him. He's 21 years old, he has to stop "sucking on the tit".

Erika: But he's still your brother :(
by dude pseudo-pseudical September 10, 2010
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To get a raw deal or the short end of the stick. Derived from the behavior of barnyard pigs. The "runt" or weakest piglet is forced to nurse on the tit farthest back on the mother pig, which gives the least nourishment.
The elderly tend to have to suck the hind tit when it comes to social services.
by Big Dick's Halfway Inn November 5, 2005
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Living Life To The Fullest

To Get Some Huge Tits In Bed
"Man, life is great, I'm sucking on the tit of life!"

"Wow, I was with Marissa last night sucking on the tit(s) of life."
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A comeback to say if bitches complain about you. Put childish people in their place and let them know you're not having it if they can't accept what you're wearing, what you like, etc.
Person 1: You don't eat pie on Thanksgiving? You're lame as fuck!
Person 2: Suck your mom's tits if you can't accept that.
by Ausllyology January 18, 2019
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This means you are acting like a child. A child young enough to still be breast feeding . Basically telling the person that they are tantruming like a 2 year old child. typically said during an argument.
Oh quit your whining, and go suck your mamma's tit! I've had enough of your bullshit! Act like a grown up for Pete's sake!
by SweetieOne December 2, 2017
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Not getting a fair share. Many female mammals have multiple rows of breasts, for example dogs. Typically the rear most pair of breasts is smaller and less developed than the rest. Hence a pup nursing from the rear most breast is likely to receive less milk than other nursing pups. Hind means rear most. Tit is slang for breast.
Since the introduction of Windows '95, Apple Computer has been sucking hind tit.
by Chicago God April 12, 2005
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