A character — usually a man — is a guest in the home of a woman with small children. He gets thirsty, opens the fridge, finds a container of milk, and starts drinking. Then, the homeowner comes along and informs him, "You're drinking breast milk."
Invariably, the character doing the drinking will be squicked out, and disgustedly spit out the milk. The audience's reaction will vary quite a bit more, considering how funny such scenes can be if done well, and the fact that in Real Life there are many people who have a Fetish for lactation, breast milk or both; not to mention that there's nothing inherently bad in breast milk in itself and (virtually) everyone drank it at some point in their lives anyway.
In Real Life, human milk is much, much sweeter than bovine or goat milk, and not as thick; the guy who was drinking it should have realized it wasn't what he thought it was without someone else telling him. After all, it's meant to be used for human consumption, far more than any other type of milk. It makes more sense if the milk is being used to complement coffee or breakfast cereal.
Usually a Comedy Trope. For obvious reasons, you'll see less of it the more kid-friendly a work is... it tends to pop up more in PG-13 or R-rated films and comedy series that are geared more specifically toward adult audiences. (Which is kind of odd, given that breast milk is mainly for children.)
Subtrope of I Ate WHAT?!.
- Not explicitly stated to be breast milk, but in Creature Tech, Dr. Ong drinks from a cup at a group picnic before being told that family doesn't have a cow. Assuming he's being ostracized or mocked for being an atheist...
Dr. Ong: So? I'm a country boy. I can drink goat's milk with the best of them.*panel shows a woman breastfeeding an infant while small children play nearby**panel shows Dr. Ong spitting out his beverage*
- An infamous Baby Blues gag. Wanda asks Darryl if he wants milk in his coffee, then (off-screen) the milk is squirted into his coffee. Wanda yells "Bullseye!" and Darryl says "I'm going to miss it when you stop breastfeeding, Wanda." Apparently this strip was submitted as a joke by the author with no intention of getting it published and just to give their editor a laugh, but since she was out of town that week her replacement simply waved it through.
- Early on in the Zootopia fanfic, Guardian Blue Season 1, a thirsty Nick is told by Stu to pick whatever he wants off the Hopps family's fridge. He ends up picking, and enjoying, the breast milk from Eli, one of Judy's sisters who has a very young kit. When he's finally told he drank bunny milk instead, Nick is suitably embarrassed and even feeling guilty, but then Eli excuses herself to the outside of the burrow and promptly bursts out laughing. Even then, Nick is the first to apologize when Eli turns in early, predicting that her baby will want a feeding in the middle of the night. It becomes a heartwarming brick joke later on, when Eli sends via the family a bottle to Nick as a humorous "get better soon" gift when he gets out of the hospital after Judy rescues him from Hell's Cauldron; when he finally gets to gulp it down, we have this scene:
Judy: Nick, please say that was just regular milk.
Nick: Nope. Sweet. Definitely grade-A bunneh!
Judy: You know thats not for foxes, right? Why would you drink that?
Nick: Did you ever drink it?
Judy: Yeah, of course. First couple years of my life, like most kits. But Im a bunny. Im supposed to.
Nick: Yeah, well, you drank it for two years... and you carried a mammal twice your weight moren a mile upward through the guts of the city with your shoulder out of joint and then kicked a freaking crater in the road in front of Palm Market just to drag me back into the light... so yeah - Imma drink the milk. Ill suck down every drop of it that gets handed to me. I figure Ill be able to fly if I drink enough.
- In Leftovers, Naruto, Sakura, and Kurenai are sent to help out a Konoha dairy farm, but when Naruto notices an abundance of women with large breasts and a distinct lack of cows, the team figures out that the farm is getting milk from human women. Apparently, it's been like that for Konoha since the Second Shinobi War.
- There is a Russian fairy tale where a woman gives birth to three sons, but her evil sister takes them away and gets her banished. After awhile, her stepson finds the house of the brothers, so to introduce himself, he asks mother to make some bread with her breast milk. Upon tasting it, his brothers recognize the taste and accept the two as their family.
- Rock Me, Baby
Jimmy: Dude, you just drank breast milk.
- In Look Who's Talking, James, played by John Travolta, borrows a bottle from the fridge to put milk in his coffee. Mollie, played by Kirstie Alley, helpfully chimes in with the trope name.
- James: Thank a lot, man. [drinks coffee]Mollie: Hey, you know, that's breast milk.[James does a Spit Take]
- The gag is actually played out again at the end of the same scene, when James announces he's leaving with his coffee and "his breast milk."
- In Meet the Fockers, Gaylord drinks a cup of his sister-in-law's breast milk on accident. He comments "ew" before putting it back down.
- In Borat, the title character from Kazakhstan nonchalantly informs the American senator he's speaking with that the cheese he's feeding the senator was made from his wife's own breast milk.
- Happens accidentally in Grown Ups, with Maria Bello as a mother who's not only still lactating but able to feed her four-year-old, and Maya Rudolph, who gets it all over her face. Her response? "It's actually not that bad."
- Later in the same movie, the toddler is succcessfully weaned off of it, leaving the mother to ask "what am I supposed to do with it now?" Her husband says he has an idea in mind.
- In 1971's Sunday Bloody Sunday, Bob, babysitting a houseful of kids, with his girlfriend Alex, finds a small, odd looking container of milk in the refrigerator and asks the eldest daughter if it's all right for him to drink, and she respond that it's milk her mother had expressed for her infant brother, as "he isn't weened yet".
- Averted in Mad Max: Fury Road where captive women are farmed for their breast milk. At one point the title character starts washing the blood off his face in a bucket of the stuff. He's surprised when told what it is, but keeps going. Earlier Rictus is also shown drinking a bottle of breast milk which clearly meets his approval.
- A variant of this occurs in the web erotica Lesbian Land 2250. The protagonist, who recently arrived in the setting, goes to get milk out of the fridge. As she's drinking it, she reads the label that says it's breast milk. Subverted when she doesn't seem to mind, and is in fact turned on by this. And then it's revealed that they regularly have women milked each day, with the milk being delivered all over the city like regular milk delivery.
- The end of The Grapes of Wrath has an intentional version when Rose of Sharon, who has recently experienced a stillbirth, nurses an old man dying of starvation. Cut from the movie version, of course, given the year it was made.
- An early conversation between a frazzled first-time mother Lori and her new nanny Francesca in Aunt Dimity Digs In:
Lori: Sorry I'm late.Francesca: No trouble. I spotted the bottles you'd left in the fridgeLori: Did you use the right ones?Francesca: Would the ones labeled My Milk be the right ones?Lori: Yes, well...Bill sort of mixed them up a few weeks ago and
- Averted in one of the Able Team novels. Carl Lyons has to ensure a baby doesn't cry as he's smuggled past a checkpoint, so he's mixing in a drug with the breast milk that the mother expresses on the spot for him. Her husband just laughs at his embarrassment, telling Lyons to try some himself as it tastes sweet.
- One episode of Friends features Ross being squicked out because Phoebe tastes some of Carol's expressed breast milk when heating it up for Ben. Joey then subsequently tastes it, to prove to Ross that it's not a big deal. Ross still refuses it, stating that it's gross, until Carol and Susan tell him that he's being silly and that they've both sampled it (Susan's tone being innuendo-filled doesn't help matters). Even then, it takes him a while to "build up" to sampling it. The humour of the scene is that absolutely none of the friends are squicked out by this except for Ross... who, given his education, might have been assumed to be perfectly okay with it... until he revealed he wasn't.
Ross: Give me the milk. *puts a drop on his arm* Give me the towel. *wipes it and walks out*
- A variation, Joey drinks formula, mistaking it for eggnog. Upon being informed it was formula, he didn't care, he just wanted more because it tasted good (though being Joey, it's possible he didn't know what "formula" was).
- Happened in the office on Close To Home. Annabeth is expressing and storing her breast milk in the fridge. One of her male co-workers ends up putting her breast milk in his coffee.
- This came up once on Designing Women, when Suzanne almost used milk Charlene had expressed for her infant daughter in her coffee.
- In Peep Show Jeremy deliberately uses Sophie's breast milk in coffee as he and Mark have run out of cow's milk. He enjoys his coffee but Mark is disgusted when he realise what it is he's drinking and refuses to drink any more saying its practically cannibalism.
- Little Britain had a recurring skit about a grown man who was still breast-fed by his mother ("Bitty?"). At one point when they're having tea the father asks if she can spare any milk, so she sprays a little into his cup. The fiancée is thoroughly Squicked, but still marries him for some reason.
- On A Different World, Jalessa left breast milk in the fridge. Ron uses the milk to make pina coladas for a bachelor party. As they are drinking, the babysitter explains that was breast milk. Cue multiple spit takes.
- Invoked in a sketch on The Kenny Everett Video Show when aging rocker Sid Snot orders a cup of tea from a roadside van. The woman serving asks if he wants sugar. He says yes and she reaches into her cleavage and pulls out a couple of sugar cubes which she drops in his tea. She then asks "Milk?" and he gives a knowing look to camera and says "You wouldn't dare."
- Served as a funny moment during the "Improbable Mission" sketch on Whose Line Is It Anyway? (US version). Ryan and Colin have to prepare breakfast for some foreign dignitary. Colin, a genetically modified agent, complains at one point that he lacks a "coffee gene", to which Ryan replies, "I'm not talking about coffee, Mr. Moo!" Cue uproarious laughter.
- One of the Hopeless Auditionees on season four of MasterChef revealed that this was the secret ingredient of her macaroni and cheese, causing Gordon Ramsay to do a Spit Take.
- On Marry Me, Gil serves cheese made from human milk at Thanksgiving dinner, much to the disgust of the group.
- On Impractical Jokers, one of Sal's punishments involves him drinking breast milk. Murr is tricked into drinking it as well even though it wasn't his punishment (the guys made him think it was a dual-punishment).
- An El Goonish Shive guest comic by the creators of The Wotch subverted this.
- Toyed with in Penny Arcade.
- In an early Least I Could Do Rayne mistakenly drinks the breast milk from a girl's fridge. He takes it in stride:
Rayne: Meh, it was either that or walk two blocks to the store. I stand by my choice.
- Hunter of Suicide for Hire would prefer this kind of milk. Just ignore the fact that they're anthros.
- Justified in Blade of Toshubi. The character drinking it's insensate, and his hostess (an anthropomorphic cow), has to feed him somehow, so she breastfeeds him.
- On The Ricky Gervais Show, he complained that a neighbor once made him a dessert from breast milk.
- This from 5 Second Films.
- In Chakona Space, Chakats normally drink each other's milk. But there's one story where a Chakat wet nurse's roommate plays this trope completely straight, for several months before shi tells hir where the stuff in hir coffee came from.
- Volume 5 of "Steve, Don't Eat It!" had Steve drinking his wife's breast milk. He didn't find the taste bad at all, even though he was squicked by the concept of drinking human breast milk. He also tried it with chocolate syrup, getting something he felt tasted just like Yoo-Hoo.
- One of the notes on the "Passive-Aggressive Notes" blog was "Dear Milk-thief: That was breast milk." It was actually used for the cover when Passive-Aggressive Notes got a book deal.
- In Neurotically Yours, Germaine, after getting fired from her job at the coffee shop, revealed to the customers that the cream in their coffee was actually her breast milk.
- Not exactly drinking, but in a guest-hosted episode of Good Mythical Morning, Rosanna Pansino and iJustine are given various lollipops while blindfolded and asked to guess their flavours. The last lollipop they try is - you guessed it - breast milk flavour (this is spoiled in the thumbnail for the video).
- Invoked in one Getsuyoubi no Tawawa story. A farmhand gets her picture taken with one of the cows as part of the farm's "meet the people behind your favorite food" campaign. When it's displayed in a supermarket's dairy aisle, some customers were confused as to whose milk it was in the bottles.
- There are multiple accounts of the TSA and other security agencies forcing mothers to drink their prepumped milk.
- A chef in N.Y. made cheese from his wife's breast milk.
- An ice cream parlor in London called Baby Gaga is now serving breast milk ice cream. The milk is provided by donors who must first have their blood tested.
- This didn't go without controversy, however. Westminster City Council shut the place down for a few months pending word from Britain's Food Standards Agency (the UK's equivalent of the FDA), ironically questioning whether it was safe for human consumption. (It reopened later.) Also, Lady Gaga threatened the place with a lawsuit over copyright violations, but was unsuccessful.
- Guess what's the latest trendy workout recovery beverage among the athletic set?... You guessed it! Proponents (yes, adult male proponents) also tout breast milk's effectiveness at settling nausea, clearing up psoriasis, and boosting the immune system. (However, physicians are not yet convinced of any supposed value for adults.)
- One little-known reason why it's medically unwise for human adults to drink breast milk is that it contains a mild laxative, intended to help newborns whose pelvic nerves are still developing to defecate as needed.
- After being fed up with someone stealing the milk, an office worker switched it with breast milk as payback.
P.S., It's organic.
- Vegans will often refer to cow's milk as "breast milk" to attempt to invoke this in non-vegans, arguing that adults drinking milk is infantile.