This trope occurs when someone is listening to someone talk and all they can hear is "blah, blah, blah". Usually used for comedic effect, it indicates that the auditor finds the conversation irrelevant, incomprehensible, or boring. Or all of the above.
Sometimes the trope is invoked literally: "Sorry doc, but all I heard of what you said was blah blah liver failure blah blah." Occasionally, this is represented visually from one character's point of view as a stream of words that all flow together.
The irate versions can verge on This Trope is [BLEEP]. The overanalysed may be [Trope Name]. In some cases, it's Technobabble.
An older phrase of similar usage from British television is Rhubarb Rhubarb (or, rarely, Rabbit Rabbit). See also Audience Murmurs. May combine with Wall of Blather.
In the Western (as in, with cowboys) manga Miriam, an arrogant sheriff's boasting eventually fades into blah blahs before Douglas, the protagonist, ditches him.
The same thing happens again later, though this time he's speechifying to the other two protagonists, Card and Joel, about how honest he is (despite the obvious corruption of the law in town). After he leaves, Card says "Now I understand why Douglas couldn't stand talking with him..."
Sayonara, Zetsubou-Sensei has an instance which is likely a parody of the Azumanga Daioh example. Kaere, who pretends to know English, is asked to talk to an English-speaking foreigner. She goes up to him and like Yukari, starts saying "Pera pera." He then gives her a puzzled look and says in heavily accented but perfect Japanese, "That girl's English is terrible." In this case, it seems like the pera pera was what the character was literally saying.
In the dub of Sgt Frog, in the New Year's episode, Giroro mocks Keroro's goal for the new year: "Gundam, blah blah blah, Gundam Gundam."
In Yandere Kanojo, some characters can use the phrase, "Yada yada blah blah," as information-conveying dialogue.
As in the above example, a Drama CD for Axis Powers Hetalia has America use this trope to explain what happened to him that made him upset, apparently to save time. England and France understand it perfectly, but Russia doesn't and England has to translate.
In Y: The Last Man, one of 355's flashbacks has two obnoxious-looking guys in the background whose conversation consists mostly of this..until the N-word is mentioned. She beats them up with a baseball bat offscreen. Don't mess with 355.
In Archie's Sonic the Hedgehog comic, Sonic once fell asleep while listening to one of Sally's speeches—his falling asleep was represented by her speech slowly degenerating into "Blah blah blah blah..."
When Hercules is asked what his compatriot (and Teen Genius) Amadeus Cho would do when faced with a brain-teaser, Herc imagines Cho going "Blah blah numbers blah blah math blah blah blah science."
In Babymouse Burns Rubber, a Star Wars-esque narrative scroll relates the story thus far, eventually turning into "blah blah blah are you really still reading this?"
A scene in Garth Ennis' The Punisher: War Zone mini-series not only does this, but also provides a variant that achieves the same effect: Molly secretly listens to a group of Mooks talking and some of the word balloons literally say "Stuff wiseguys talk about" and "Stupid, cowardly, easily convinced wiseguys".
In one Spider Man comic, Peter, MJ and Carlie are talking, with Peter and Carlie's Technobabble is represented as "But that would mean [Stuff MJ doesn't understand]". Eventually MJ excuses herself by saying "I have a photoshoot with [Fashion celebrity Peter and Carlie have never heard of]."
Haruhi in Kyon: Big Damn Hero, when Kyon and Asakura are talking about the time when she tried to kill him.
Haruhi: Blah blah blah, Skip the speeches - if I don't know the complete back story, it's all meaningless to me.
Andy: Dear Andy, thank you for purchasing my test, blah blah blah... That's what it says. "Thank you for purchasing my test, blah, blah, blah".
Leo in The Jackson Legacy, to express his point about prophecies to Iamus. Also the Fanfic page's quote.
Leo: Prophecies, blah-blah-blah, fate of the world lies in one child, yeah, we get those a lot.
Films — Animated
In Cloudy with a Chance of Meatballs, the mayor responds to Flint's explanation about why the food is getting bigger (and potentially dangerous) with, "Here's what I heard: blah blah blah, science science science BIGGER."
Edna (to Helen): Yes, words are useless! Gobble gobble gobble gobble gobble. There's too much of it, darling, too much!
In Finding Nemo, a school of fish (voiced by John Ratzenberger), thinking that Marlin was harassing Dory, talks over his requests for directions to Australia; "Blah blah blah, me me blah. Blah blah blah blah me me me." When Dory speaks up for Marlin and explains that he's trying to find his son Nemo, the fish are more willing to help him.
Films — Live-Action
In The Movie version of Speed Racer, young Speed found his schoolwork turning into blah-blah-blah because it wasn't talking about car racing.
In Ernest Goes To School, Ernest becomes much smarter after undergoing a magical intelligence upgrade, but his newfound intellectualism makes his simple classes so boring to him that the lectures all come across as "blah blah blah blah blah."
Mr. Deeds features a woman responding to Winona Ryder's heartfelt apology with "All I heard was blah blah blah, I'm a dirty tramp!"
In The Movie of Nine, Guido's wife, tired of listening to his lies, interrupts him with "Blah blah blah blah blah."
In the Lenny Bruce biopic Bruce there is a sequence in which Lenny (Dustin Hoffman) talks about oral sex to an audience and even police officers. Due to the heavy censorship issues at the time, he told the audience that all profane words would be replaced by "blah-blah". He then continues:
"Excuse me sir, have you ever had your blah-blahed? Is that your girlfriend? Has she ever blahed your blah?"
In Death Becomes Her, Madeline Ashton and Helen Sharp attend Dr. Menville's funeral and start to leave when they hear the priest giving the eulogy speaking of the deceased who discovered true immortality through making himself a legend in his work and as a man who will live forever. They simply respond with "blah blah blah".
Pulp Fiction, Honey Bunny (also known as Yolanda) and Pumpkin talk about quitting robbing at the diner.
Honey Bunny: When you go on like this, you know what you sound like? Pumpkin: I sound like a sensible fucking man, is what I sound like. Honey Bunny: [very affectionately] You sound like a duck. Quack, quack, quack, quack, quack, quack, quack...
Dave Barry, after writing a column complaining about Neil Diamond's songs, in particular a Painful Rhyme in "I Am, I Said," received a great deal of hate mail from irate Neil Diamond fans, which he condensed into this all-purpose letter incorporating most of what they were fuming about:
Dear Pukenose: Just who the hell do you think you are to blah blah a great artist like Neil blah more than twenty gold records blah blah how many gold records do YOU have, you scumsucking wad of blah I personally have attended 1,794 of Neil's concerts blah blah What about "Love on the Rocks," huh? What about "Cracklin' Rosie"? blah blah If you had ONE TENTH of the talent blah blah so I listened to "Heart Light" forty times in a row and the next day the cyst was GONE and the doctor said he had never seen such a rapid blah blah What about "Play Me"? What about "Song Sung Blah"? Cancel my subscription, if I have one.
Robert Sheckley once wrote a story about a space explorer whose specialty is linguistics; he happens to land on a planet of beings whose language constantly changes, until they end up saying "Mun" in a variety of tones, conveyed by punctuation and interspersed with comments in whatever language you happen to read it in. (Sorry, I can't be bothered to search a couple cubic meter of books just to find the title in French.)
According to George and Harold's comic books in the Captain Underpants series, their principal, Mr. Krupp, is only capable of saying "Blah blah blah" and "Bwahahaha".
In the Cryptonomicon, Waterhouse tries (and fails) to explain how his digital computer works to a much less technically savvy character:
"Dr. Turing, of Cambridge University, has pointed out that bobbadah bobbadah hoe daddy yanga langa furjeezama bing jingle oh yeah," Waterhouse says, or words to that effect.
Actually occurs in The Bible of all places: Isaiah 28:10 and 13. As translated by the NIV: "Do and do, do and do, rule on rule, rule on rule; a little here, a little there." (Hebrew: "Sav lasav, sav lasav, Kav lakav, kav lakav, Ze'er sham, ze'er sham.") This represents people mocking the prophet's words as meaningless blabber.
From an example in How Not To Write A Novel: "He went into his office and began his routine of blah while he admired the same view of blah blah that was just the same as every other day on which blah and like clockwork blah blah until it began to seem as if life was an empty series of meaningless actions."
In Otherwise Known As Sheila The Great, Sheila Tubman and her friends get into a fight with each other over what they wrote about each other in their Slam Books, and Sheila's sister Libby and her friend Maryann Markman interrupt it and Maryann gets hit by one of the models in Sheila's bedroom that gets thrown around. Libby threatens to make this fight in the bedroom known to their parents, and Sheila and her friends respond to that threat with "blah blah blah", getting Libby and Maryann to leave the room.
In 1984 there is a New Speak word for it: "Duckspeak" meaning, to quack like a duck. It can be used as a compliment, when a party member spews proper gibberish propaganda without inflection or meaning (seen as a good thing—their political culture never discovered the sound bite), or as an insult if a rival is doing exactly the same thing.
A children's novel called Cowboy Boy had two entire pages of the main character's friend saying nothing but this.
Malcolm in the Middle: when Lois was ranting about the driver who framed her up for a traffic fine, Malcolm was hearing her clucking like a hen, Reese was hearing her say "blah blah blah", and Dewey was picturing himself in the driver seat, with his mom in the passenger's seat saying "Dewey" over and over again.
Dr. Kelso: Why, I remember back in '68, blah blah blah, nostalgic story. Now get the hell outta my office!
"Shoe shopping" is used to similar effect in "My Big Bird." Anytime a girl says "shoe shopping," all men within earshot zone out and hear most likely nothing but "blah blah blah" until someone mentions bras or similar. Subverted later in the episode when Dr. Cox reveals to have gained immunity because of overexposure to his ex-wife, Jordan.
On one episode of How I Met Your Mother, Older Ted can't remember the name of the woman he was dating, so for the entire episode she is just referred to as Blah Blah. ("Please, just call me Blah.")
"I'm just some rebound date to you, aren't I? In a year's time, you probably won't remember my name."
"That's not true, Blah Blah!"
In another episode, what Barney heard on the previous night was
"Blah, blah, blah, I'm an architect. Blah, blah, blah, I don't wear suits. Blah, blah, blah, blah, blah. Wow, an architect.How fascinating. Blah, blah, blah, blah. Rambling architecture anecdote. Blah, blah, something about a bridge. Blah, blah, blah..."
Played with on Arrested Development. A lawyer in a commercial says what sounds like, "You don't need doublespeak; you need Blah Blah Blah!" He's actually saying "Bob Loblaw," and he becomes a recurring character. He also runs a website, the Bob Loblaw Law Blog.
Mad About You was another show that used the "this is what the dog hears" version.
Used twice in the Frasier episode "Death and the Dog". Frasier and Martin start arguing about whether Eddie (the dog) can understand them - we cut to Eddie's point of view where all he can understand is his own name. Later, Frasier and Niles start having a psychiatric debate about Martin - we cut to Martin's point of view, where the only thing he can understand is the word "Dad".
Rachel: Well okay, how about four hours in a freezing museum auditorium listening to Professor Pitstains and he's "Hey everybody! Remember that thing that's been dead for a gazillion years. Well there's this little bone we didn't know it had!" Ross: First of all it's Professor Pittain! And second of all, that little bone proved that that particular dinosaur had wings, but didn't fly. Rachel: Okay, see now, what I just heard: blah-blah-blah, blah-blah-blah-blah-blah, blah-blah-blah, blah, blah.
In "The One With The Apothecary Table", Joey's room-mate/girlfriend Janine does not get along well with Chandler and Monica. She says that they're just a little blah, then she specifies that Chandler is blah and Monica is very loud.
Chandler: And I'm blah? Listen, the only thing more boring than watching modern dance is having to listen to you talk about it, [imitating her accent] 'Oh Chandler, I just lost myself in the moment. Janine: Y'know, I know you're talking, but all I hear is, 'Blah. Blah. Blah-blah-blah.'
At one point in Firefly, Mal dismisses what someone is telling him by cutting them off and saying "Jabber-jabber-jabber."
In Charmed, Paige was on a date and the guy was so boring that all that she heard was 'blah blah blah'.
In Grace Under Fire Grace's boss does this in constantly, especially in pep talks, possibly undermined in that he's usually effective.
The Get Me Hennimore! sketches from That Mitchell And Webb Look. In each sketch, Hennimore's boss would give him two straightforward but mutually incompatible jobs, the central Macguffins of which were indistinguishable from each other. Hilarity Ensued. In the final episode, the audience was given an insight into Hennimore's head, where his boss's instructions consisted entirely of "blah blah blah" while he pictured the inevitable and imminent resulting disasters.
Happens during an episode of Big Wolf on Campus. Merton tries to explain the plagues of the Old Testament to Tommy (Since a mummy was using them against the high-school kids...long story) and ends up going "...blah, blah, blah." which prompts Tommy to respond "You can't blah, blah, blah the Bible."*
Something like "blah blah blah" actually appears in the Bible; see the literature section above.
Web Soup showed a video where a little girl gets kicked in the face with a soccer ball. When the clip ends, Chris Hardwick goes, "Blah Blah Blah, balls-to-the-face joke."
On Rescue Me, this is Tommy's sort-of catch phrase.
In True Blood, Pam's explanation of a dire situation is: "Blah, blah, vampire emergency, blah."
Glee: Mercedes ends up being the third wheel to Kurt and Blaine. Combined with her going into tots-withdrawal, we get: "Gay Gay Gay." Amusingly, it turns out that they were talking about football during her zone-out.
On The IT Crowd, when Moss is trying to explain to Jen the basics of computers on her first day, all she hears from him is static.
That '70s Show has an entertaining variation: A conversation between Eric, Hyde, Kelso and Laurie takes place, involving Laurie shooting down Kelso's blatant attempts to hit on her. After she leaves, we see that Kelso only heard just enough of what Laurie said to him to string together a few sentences that make it seem like she wants him just as badly.
A subtle example occurs in a Coupling episode shown through the perspectives of various characters: When Patrick and Sally engage in small talk at an office party, she asks how he got there. In Patrick's version of events, he gives a ridiculously detailed account of the brand and specs of his car. In Sally's version of events, he just says "Car". When Susan shows up they also begin discussing all the food in the spread. In Sally's version each meat has its own type and description. In Patrick's, it is all just sausage.
In the 2005 Doctor WhoChristmas Special episode, "The Christmas Invasion," Rose is wandering about with her on-again/off-again boyfriend Mickey, whose dialogue eventually literally turns into "yap yap yap yap yap."
Mickey is very sarcastic, so it was possible he was doing so on purpose, trying to draw attention to her ignoring him...maybe.
In context, he's imitating his grandmother: "She does my dinner on a Sunday, talks about you all afternoon, yap yap yap yap..." Still counts, though.
There was a famous Seinfeld episode about this trope but called "Yadda-yadda". It involved George believing his girlfriend was cheating on him and using "yadda yadda yadda" to cover it. For example, she mentioned that an ex-boyfriend, stopped over at her place for a visit and "yadda yadda yadda", she was really tired today.
The Father Ted episode "Cigarettes and Alcohol and Rollerblading" has the priests trying to give up their vices for Lent. As withdrawal kicks in, we see them hallucinating each other as giant talking cigarettes (in Ted's case) and pints of Guinness (in Jack's case), their speech reduced to just "blah blah blah".
Jade does this on Series/Victorious in response to Tori talking about her science project.
Jade: I don't know, all I heard was "Hamster Hamster, Science Science, Tori's boring, kill me."
In one issue of Doctor Who Magazine, Steven Moffat writes his "Production Notes" column as a transcript of a writers' meeting. Producer Beth Willis's desperate attempts to convince him it's not important how many companions haven't met the Daleks quickly becomes "blah blah blah" until he emerges from his fugue with a triumphant "Nine!"
The Gershwin song "Blah, Blah, Blah." Half the refrain is made of cliched rhymes used in Silly Love Songs of the early 30s, and the other half is "blah blah blah" and "tra la la."
The Austin Lounge Lizards perform a song called "Old Blevins", in which the song's narrator meets the eponymous individual in a bar, who seems to have some deep and abiding wisdom he's desperate to share:
"And this is what Old Blevins said to me: He said "Blah blah blah blah blah blah blah blah In Tijuana, blah blah blah, back in 1963..."
Rockapella also performed a song entitled "Blah Blah Blah":
When you talk, all I hear is "blah blah blah" Baby, you got nothin' to say You're makin' sound good and loud now, I can't make it out Your lips are workin' fine, but when you talk, "blah blah"
We bankrupt all invaders, we sell them souvenirs We ner ner ner ner by the ears Er hner ner ner ner ner ner ner hner ner ner. Ner-ner her, ner-ner ner, hner ner ner ner neeer Er , your gleaming swords, we mortgaged to the hilt... We mortgaged to the hilt
I'm walking to the something, blah blah blah blah blah blah blah (collapse) I'm drinking too much blah blah, blah blah blah blah blah blah (fall out) I'm feeling very blah blah, I want to blah blah blah (collapse) And in the end, it means I blah blah blah blah blah blah blah (the end)
Little-known group Devotion 2 Music provided the song "Blah, Blah, Blah" to the Pokemon the Movie 2000 soundtrack, which basically boils down to a group of girls who don't care what adults have to say, they're too busy playing/watching Pokemon.
There was a song by Gigi D'agostino titled "Bla Bla Bla", which consists of a remix of the sentence "I've been thinkin' about what you have done to me" from the song "Why Did You Do It" by Stretch. Plus it's got a cool animation.
Slovenian rock band Naio Ssaion has a song entitled "Blah-Blah."
"This is the New Sh*t" by Marilyn Manson is all about this trope. The chorus even mentions it:
Babble babble bitch bitch Rebel rebel party party Sex sex sex and don't forget the "violence" Blah blah blah got your lovey-dovey sad-and-lonely Stick your STUPID SLOGAN in: Everybody sing along.
I can see your lips move/ Blah blah blah/ But all I hear is
The Far Side with a dog translating machine. The translations? Strings of "Hey! Hey! Hey! Hey! Hey!"
Robotman also did a similar one, with the dog's barking translated as "Fleas, fleas, tail, fleas..." and the cat's meows as "Ball, ball, chase ball, tuna..."
Another pair of The Far Side strips show how a dog named Ginger hears her owner ("blah blah Ginger blah blah blah blah blah blah blah blah Ginger blah blah blah blah blah...") and how a cat named Fluffy hears hers ("____________________________________").
Inverted in one Fox Trot comic, which has Paige complaining that the day has been boring, and it's just been one "blah" event after another. Cue Peter walking up to hear her actually say "blah blah blah" out of the legitimate context Paige had been using.
This strip was possibly Amend lampshading, as early strips involved Paige's phone conversations literally written as "Blah blah blah blah blah".
Evie: Everything ok at home, Val? Val: We're fine. Weather's nice... the girls can't wait for summer... Phil and I are seeing more of each other... blah blah blah... Evie: "Blah blah blah"?? I haven't heard that euphemism in quite a while. Val: I haven't needed that euphemism in quite a while.
Dilbert once went on a date with a serial yakker. "Yak yak yak blah blah yak yak yak yak blah blah..."
One scene of Rodgers and Hammerstein's Allegro has the Greek Chorus continuously chanting, "Yatata, yatata, yatata, yatata" to represent what "the deep-thinking gentlemen and ladies who keep this metropolis alive" have to say to each other. Or, in other words:
Girl (To Another Girl, with great expression): Broccoli! A Man (Answering in the same gushing manner): Hogwash! Man (To Girl): Balderdash! Another Man (To Another Girl): Phoney baloney! Girl (Answering): Tripe and trash!
In Spring Awakening, the song "Totally Fucked" has the characters mocking their teachers by mimicking them this way, and ends with the characters leaping around the stage in a (well, choreographed, but seemingly) random explosion of movement shouting "BLAH BLAH BLAH..."
In Chicago, each of the witnesses at Roxie's trial is sworn in thusly:
Clerk: Blahblahblahblahblahblahblah... truth... truth... truth. Selp-yuh God.
In the Discworld video game, the password to the monks' meeting place is literally "Blah blah blah spoons blah blah blah swordfish blah blah blah Simon Says".
Duty Calls, a parody of Call of Duty, gives your objective by saying, "Here's your objective: Blah blah blah blah secret base. Blah blah blah blah plans. Blah blah blah nuclear missile bomb. Blah blah blah counting on you. Utmost importance, win, good luck."
In Vampire The Masquerade Bloodlines, the hostess at the Red Dragon restaurant calls her friend on her cell phone after you take the elevator to the second floor. One of her conversations consists of nothing but "Blah blah blah" with inflection and emphasis in the right places to make it sound like it could be an actual conversation. It's hard to hear through the floor, but you can read it if you put on the subtitles.
Mz. Ruby: Ha ha ha... Oh, Sly. I see your mouth a' movin', but all I hear is 'Blah, blah, blah'!
In Luminous Arc 2, Pop use this to get saying the vows required to Unite with Master Roland over with.
The explanation of how the Transfer Machine in Pokemon Black And White works is this trope mixed with random technological phrases. It's unknown whether this is the player character ignoring/not understanding what the scientist is saying or the scientist not bothering with a real explanation.
The "Ring Side" minigame from Rhythm Heaven Fever features a wrestler answering questions from a sports reporter. The wrestler is apparently not paying attention, as the only thing she seems to say is "Wubbadubbadub, is that true?" and "Whoa, you go, big guy!"
Amnesia The Dark Descent has an instance that is definitely not funny. During the flashback in which he cuts a man's flesh in order to keep the Shadow at bay, Daniel starts mockingly parroting the man's cries of agony. "Please! I didn't do anything! Blah blah blah!"
Jet Set Radio Future: "Its name is... well, BLAH DIDDLY BLAH BLAH, ITS NAME IS IRRELEVANT!!!"
Used in Megaman Battle Network 6 to have Lan avoid recapping something that just happened a few minutes ago while still explaining it to a character.
In Yahtzee Takes On The World, by yes, thatYahtzee, Newspapers have only the title (I.E. the important part) in actual words, with the rest being just the word "blah" repeated over and over, but one random word will also be added, so the paper reads something like this:
Played in this filler strip for Blazen!, wherein Makoto, Valkenhayn and Platinum find Terumi with Noel becoming Mu-12, and ask what's going on. What he gives is a summation of the plot so-far. As usual, made better by reading it in Terumi's voice.
Terumi: Well, since you're all here, I may as well tell you the same story I've told everyone else today. Blah blah blah, CAULDRON, blah blah blah, BLACK BEAST, blah blah blah, AZURE, blah blah blah, NEW WIFE, blah blah, HURRAY! The end!
Parodied in Fedora Spade Episode 4, when it's a good time to mash "C".
In the original online version of Diary of a Wimpy Kid, one entry details Greg sleeping in class and his teacher making him sit up front as punishment. The accompanying drawing is of Greg asleep and snoring on the chair while his teacher's lecture is rendered as "Blaaah blaaah blaaah blaaah".
The satirical blog spEak You're bRanes, which used to allow comments on posts until the owner got fed up of the fans. Now, any comment posted will appear as blahs with the occasional word slipping through ("blah blah blah reenable blah comments" is a common one).
What Kyon Hears: "Blah, Blah, Blah. I'm a selfish jerk. Blah, Blah, Blah. Pay attention to me. Blah Blah Blah. I have delusions of godhood."
What Haruhi Hears: "Blah, Blah, Blah. I refuse to listen to what you say. Blah, Blah, Blah. I'm here to ruin your fun. Blah, Blah, Blah. I love plot."
Half-Life in 60 Seconds has G-Man end the Half-Life 2 portion with "Blah Blah Blah, Mr. Freeman."
In the Advance war's parody Bob squad Olaf is literally doing this:
Olaf: Blah dribble dribble
Colin: (What's worse is he's actually saying "dribble".)
Olaf: Listen to my nonsense dribble.
Colin: Yes sir!
The Homestar Runner sbemail "long pants" had Strong Bad annoyedly shorten down a rambling portion of the email to, "Anyway, blabbity blah, blah blebbity bloo, I don't care, just get him some pants!"
In the Warhammer 40000 parody Toymallet 40c, this is the example of a mission briefing:
The planet Tabletopistan is the blah blah ancient derelict of the blah blah blah claimed by the Necrogumby blah which seeks to blah blah and also by the Hello Kittau empire blah bringing dire blah to the civilized blah of the galaxy. You must blah blah by reaching the derelict and holding it from all enemies at the end of the last turn. Fnord.
The visual effect aspect of this trope as mentioned in the description is played for dramatic effect early on in Katawa Shoujo, when Hisao reads the alarmingly long prescription list given to him by his doctor, detailing the various medications he would need to take daily for his heart condition. Snippets of the medical jargon used on it rapidly flood onto a white background, until the majority of it is rendered completely incomprehensible.
The Fairly Oddparents has this with "untranslated" girl talk: "Blah blah blah shoes! Blah blah blah clothes! Blah blah blah boyfriends! Blah blah blah. We'll never notice you."
Taz's dad (a Bing Crosby Soundalike) from TazMania often went "Blah, blah, blah, yakkety schmakkety."
When Bart tries to train Santa's Little Helper in The Simpsons, that's all the dog hears.
The same happens to Bart and Homer themselves, when speaking to a teacher and a psychiatrist about Bart's bad performance in school.
Similar to The Simpsons, Rugrats once had an episode with dog's-eye-view scenes, where all the humans speak gibberish except for the dog's name, Spike.
In a flashback, Young!Krusty also invoked this trope when poking fun at his father's profession as a Rabbi ("Blah, blah, blah, Moses!").
Homer used this in his roast of Mr. Burns at the latter's birthday celebration ("I'm Mr. Burns, blah, blah, blah! Do this, do that, blah, blah, blah!").
In an episode of Duckman, during a visit to a Banana Republic, the main character embarks on one of his trademark rants, and gains a number of listeners. When the perspective shifts to one man in the crowd, he hears it as "blah-blah-blah" and thinks "I wish we understood English."
Chowder once had the title character listening to Mung Daal's lecture about midnight-snacking:
Mung: Listen, Chowder. Late night snacking is not healthy. It can cause a change in your eating and, blah. Blah blah blah blah blah. Blah, blah blah blah. Blah blah. Your not listening to me are you? Chowder: Yes I am! Mung: What'd I just say? Chowder: Blah, blah blah. Blabbty, blah blah. Blah blah. and I couldn't hear the last part because I was looking at the food.
Mung: ...Lucky guess
Another episode shows Endive reading a fake love letter saying how beautiful she is, but when you see it all it says it "Dear Ms. Endive" then repeats blah for the entire page.
Which implies that Mung actually wrote blah blah blah for almost an entire letter. Then again, she does have an obsession with him in that episode, so apparently she was crazy enough to fill in the blanks for herself and pretend he actually wrote them.
In "Chowder's Catering Company", when Chowder arrives in the kitchen with a dirty fuzzball, we see Mung talking to Shnitzel, although we can only hear him say "blah blah blah".
In the Tuff Puppy episode "Dog's Best Friend", freeze framing Snaptrap's dance acadamy invitation reveals: "Dear Verminious, we would like to offer you full scholarship! Ah blah blah blah blah yadda yadda yadda yadda yadda blah blah blah blah blah blah blah."
Also, in "Forget Me Mutt", Dudley says "Yap yap blah blah blah blah blah!" as The Chief.
Parodied in Sponge Bob Square Pants. Spongebob lets Gary sleep over at Patrick's rockhouse, and while he's thinking, Patrick can only be heard saying "Blah blah blah." Then, when Spongebob leaves, we get to hear the rest of Patrick and Gary's conversation: He's actually saying "Blah blah blah" instead of plain English.
The same thing happens in "Band Geeks". The ambient noise of everyone talking before practice is revealed to everyone just saying blah blah blah.
A similar thing happens in a different episode when Spongebob calls Squidward on the phone. We hear Squidward's half of the conversation, with Spongebob talking in muffled gibberish in the background. When Squidward hangs up, the scene switches to Spongebob and Patrick, still talking in gibberish to each other.
Same thing whenever Mrs. Puff is teaching and Spongebob is distracted. Even when focus switches back to Mrs. Puff she is still saying 'blah blah blah'.
Also in one episode where Sandy calls Spongebob's decision to forever stay in his house 'crazy talk', Patrick interrupts and says that this is the "real" crazy talk:
Patrick: Blah Blah Blah Blah Blah! Blah Blah Blah Blah Blah! Blah! Blah! Blah! Awloooooooo——- [Sandy bonks him on the head] Patrick: Sorry.
In the season 6 episode 'The Card'; Spongebob is trying to explain to Patrick how valuable his trading card is, but all Patrick could hear is 'bla bla bla'.
"Heh-heh, Rob Schneider, derp de derp! Derp de derpity derpee derp." From an episode of South Park, it's a Real Trailer, Fake Movie for "Da Derp Dee Derp Da Teetley Derpee Derpee Dumb" (rated PG-13).
Let's not forget "RABBLE RABBLE RABBLE", which is yelled by pretty much every angry mob on the show.
The "RABBLE RABBLE RABBLE" gets lampshaded ocasionally.
In the Daria episode "Depth Takes a Holiday", Valentine's Day and St. Patrick's Day are eavesdropping on Helen and Jake chewing out Daria. Valentine's describes their conversation as "being all blah blah blah".
In an episode of Pinky And The Brain, we see how Pinky hears Brain, and it basically comes out to "And now we're going to blah blah big word blah blah really big word blah blah blah..."
In a holiday edition The Boondocks, Granddad completely waves away Huey's detailed explanation about Christmas actually being a pagan holiday with the hilariously out-of-context line, "Blah blah gay sex, blah blah Congress."
In Care Bears: Share Bear Shines, Share is trying to convince Princess Starglo not to abandon her post by telling her the storybook version of her history. "You were the first twinklet, the mother of all the stars!" Starglo is not impressed, as she continues the story, "The keeper of starlight and wishes, burning brightly in the sky, blah blah blah blah. Yeah, I've heard the story, too." Though she does admit that the story is true, "Except for the 'blah blah blah' part. I made that up."
Phong's password on Re Boot was "yadda yadda yadda".
In an episode of Histeria about Samuel Webster and his dictionary, the publisher is dictating a letter to his secretary and ends with "blah blah blah blah blah". When asked to read back the letter, she reads the blah blah blah blah blah" back as well.
The Critic had an episode where Jay Sherman was playing an arcade game called Escape From the BigApple in which his player character encountered a rather difficult enemy:
The "from a character's perspective" version in parodied/subverted by Phineas And Ferb. Candace is ranting at the two main characters, when they start to phase out. When Candace asks if they were even listening, it turns out that her voice literally became echo-y, for some reason.
Invader Zim: "Yes, yes, you blame me for your horrible life, blah, blah, BIG DEAL!"
The ancient Greek version of "Blah blah blah" was "Barbari," and this was typically how foreigners were represented as speaking: One long string of unintelligible "bar-bari-bar-bari." Hence the term "Barbarian."note Conan the Blahblahian doesn't quite have the same ring to it, does it?
In 1971, a contemporary Norwegian poet made a point in trying to get an article printed in the biggest newspaper in the country. The entire text consisted of "blabla". All to make harassment of the overly long and fact-based articles in said newspaper. He never got in on print there, but the correspondence following the attempt was quite hilarious in hindsight.