A situation where one character says a word or phrase in a non "Double Entendre" (or sometimes not even Innocent Innuendo) manner, but another takes it the wrong way and starts laughing. Bonus points if the first person tells the second to "grow up" or something similar. The amused character saying "That's What She Said!" has the same effect.
Compare That Came Out Wrong(Heh heh... "came") and Accidental Innuendo(Heh heh... in-your-endo). Contrast Innocent Innuendo(Heh heh... "innuendo" again) and oh would you be quiet!!note (Heh heh... "wood") SHUT UP OR I WILL MAKE YOU!
And yes, like That's What She Said, this can definitely be Truth in Television, depending on how often you hang out with immature people.
An especially immature version is that one character (often a girl) actually says some "naughty" word, like "butt", but in a rather non-sexual situation, and another character (often a boy) stops listening to her, just snickering to his mates: "Heh, heh, she said 'butt'."
In season one, Germany and Italy see a scientist giving a lecure:
Scientist: ...our research has but cracked the surface...
Italy: Hehehe... that professor guy doesn't know it, but he just said butt crack!"
And in season five when Turkey comments on how different Germany and Prussia's personalities are:
Austria: Maybe they're different on the surface, but when it comes to clothes, they share an anal-retentive streak.
Turkey: Hahaha! You just said anal!
Heh heh, Comic Books
In The Dandy comic strip My Own Genie, a giant monkey gets stuck on top of town hall, according to the Mayor, who says "He's done a doodie on top of town hall." Lula responds with, "Ehehehe. Doodie."
Non-sexual or scatological version done by Deadpool in an issue of his first series. He meets the zombie controlling villain known as the Black Talon, and cracks up at his costume's resemblance to a chicken. After a few comments even the zombies start to giggle, leading to this exchange:
Black Talon(to zombies): Hey! Not a peep out of you!
Deadpool: The chicken...just...said...peep! Bwahahaha!
Hivefled; discussion of troll quadrants with John elicits "Haha, you said flush."
Heh heh, Film
One subplot in Smile features a trio of boys trying to get pictures of the beauty pageant contestants. One of them, Freddy, continually riffs on the contestants' names (and other things):
Little Bob: (getting out of a car) Keep the motor running. Freddy: I got my motor running! Chuck: Aw, geez.
Freddy: Look at that one from Bakersfield! Ah, I got something she can bake in her field. Chuck: *beat* I hate him.
In the first Austin Powers movie, Patty O'Brien, Dr Evil's Irish Henchman, complains that Scotland Yard is "always after me lucky charms," much to the amusement of his colleagues. For this scene, see also Don't Explain the Joke.
And Dickus' wife Incontinentia...Incontinentia Buttocks.
In Transformers, some of Sam's classmates laugh when he says "Sextant" and again when he says "Seamen". Both times, the teacher holds up a sign reading "Quiet", with a resigned look on his face. Sam's class is clearly sophomoric.
In Used Cars, the car dealership is doing an illegal broadcast by tapping into a football game and substituting their own commercial for the video feed. One of the car dealers has a deathly fear of red painted cars, and when they cut in the commercial and the flood lights are turned on, he realizes it's not a dark blue car, but a red one, so he says, "What the fuck is this, Rudy, a red car?" One of the technicians that arranged for the illegal tap in turns to Rudy and says, "Did he say 'fuck'? That's an FCC violation!" As if what they're already doing isn't...
Vanellope: I bet you really gotta watch where you step in a game called "Hero's Doody!"
And moments later:
Vanellope: Why did the hero flush the toilet? ...Say "Why?"
Ralph: (annoyed) ...Why.
Vanellope: Because it was his doody!
Oh, and did we mention that Vanellope is voiced by Sarah Silverman? This cannot be a coincidence.
In Down Periscope Cmdr Dodge adresses the crew about a woman (Lt. Lake) being on board:
Dodge: All right, look, gentlemen. I know this is an unusual situation. Can't be easy for Lt. Lake here to be thrown into a jungle such as this, and I know it will make things hard on all of us... Crew:[laughter] Dodge: Let me re-phrase that. It's going to make things difficult on all of us as well. But if we just work together as a team, I'm sure we can handle ourselves... Crew:[laughter] Dodge:Comport ourselves as professionals. That is all.
In Despicable Me 2, the head of the Anti-Villain League introduces himself as Silas Ramsbottom. Gru's Adorable Evil Minions immediately laugh at the "bottom" part of his name. Silas is not amused. Later, Gru intentionally mixes up his name as "Sheepsbutt". When Silas calmly corrects him, Gru replies that it's not much better.
Heh heh, Literature
Done a couple times by Karrin Murphy in Love Hurts, a short story of The Dresden Files. This is mildly out of character and is one of the reader's first clues that she and Dresden have been, as they say later, "whammied."
In one book of Animorphs, Rachel is accidentally split in two (regenerative morphs...long story). Jake deduces that, while her wild-and-bloodthirsty half loves to fight, her kind-but-cowardly half got her sense of duty. Nice Rachel's reaction is basically, "Heh heh, you said 'doody'."
In 36 Children, a non-fiction account of a young teacher's year in a poor Harlem school in the mid 60's, one of piece of advice he's given by an older teacher is to skip over Emily Dickinson's poem "There Is No Frigate Like A Book", even though it's in the textbook for the English class. She warns him that he'll lose control over the class as soon as the kids hear the first line.
In Remote Man Ned gets this reaction when he brings up his interest in Herpetology with his friend's friends - his internet screen name, Herpman, triggers a string of STD jokes.
There are no decent words to name it, but it is understood that all words name it or rather inevitably allude to it, and so in a conversation I said anything and the adepts smile or become uncomfortable, because they felt that I had touched the Secret.
In another episode, Elliot is able to indirectly identify Turk and JD over the phone because they laugh at a patient saying the word "duty".
And in the episode where the viewer hears Turk's thoughts instead of JD's, Turk giggles internally over someone using the word "pianist".
Another one in season 8 when JD is telling his friends he's leaving. JD and Turk proceed to giggle about his new boss' name (Dr. Mantoots).
Another one is Turk asking Carla what was the name of the wedding dress designer she likes. After answering "Vera Wang", cue Turk and JD's giggling. Which was also subverted by The Todd when he walks by and overhears the conversation.
Todd: What? I think Vera Wang makes very beautiful gowns. Plus, her last name is a very funny word for "penis."
Happens to Joey Tribbiani of Friends all the time. Quoth Chandler Bing: "Twenty-nine, Joe. You're twenty-nine."
And in a later episode: "Thirty-two Joe. You're Thirty-two."
Joey and Rachel both snickered at Ross' mention of Homo erectus.
Apparently Joey also can't help invoking this trope whenever someone mentions Rachel's doctor, whose last name is Weiner.
Joey also invokes this trope in one episode with Rachel:
Rachel: What's so funny?
Joey: You said number two.
Rachel: I also said number one.
Joey: I know!
Then there was the one where Chandler messes up a job interview when the potential employer wants to talk to him about his duties.
Done in Hannah Montana where a White House tour-lady is explaining the many duties of the president and the first lady.
Lilly: Why don't you just ask him out?
Miley: I'm from Tennessee. We don't do that.
Lilly: Well, you're in California now, and we do do that.
Michael: We wouldn't have this problem if the lunch ladies could make a decent chicken breast.
(Logan starts snickering)
Zoey: What's so funny?
Chase: Michael said "breast".
Logan: Breast... (snickers)
Simon Partridge from an episode of Blackadder II constantly takes what someone says as sounding "a bit rude."
"'Holding my own?' Now that sounds incredibly rude!"
Subverted later in the episode:
"Wahey! Bums! Sounds a bit like... bum... doesn't it?"
Lady Whiteadder: Luck? Wahey! Get it?
Everyone else: No...
Lady Whiteadder: Oh, come on! Luck! Sounds almost exactly like fu- *Credits*
In the Wizards of Waverly Place episode "Future Harper", our teenage wizard heroes travel about using a device called the Inter-wizard People Porter. Max (and a one-shot character in Egypt) pick up on the fact that the acronym sounds like "I pee-pee".
Mary: My students are so immature. I was talking about Holocene man and they keep giggling whenever I mention Homo erectus. [Dick snickers] Mary: And whenever I mentioned Homo erectus - [Dick laughs out loud] Mary: Okay, what is so funny about Homo erectus?! Dick: Homo erectus was Pleistocene man not Holocene man!
Played with in the US version of Queer as Folk Brian and Lindsay are meeting with the principal for a school where they want Gus to go. Lindsay has told Brian to behave, and while waiting outside the principal's office, Brian says something along the lines of: "...well, there is no predicting... oops, I said dick!"
Comes up unexpectedly (hehheh) in Buffy the Vampire Slayer when the gang is threatening to fall apart. Xander faces the necessity of joining the Army and says "I bet all that changes when I'm doing situps at Fort Dix!" Giles, quite drunk, chokes on his drink. "'Fort Dix'? PHAWWW!!!"
As this clip from That '70s Show shows, even when, initially, only one out of three people finds a word like "penal" to be funny. Repetition of the word will cause the other two to laugh in time.
Especially when Hyde points out that Kelso is taking "an oral test on the penal code"
In Community episode "Comparative Religion" Jeff commends Pierce on not reacting to Shirley commenting on the Dean "shoving his PC-ness down my throat." Turns out the only reason was that Pierce didn't get it until Jeff pointed it out.
In "Beginner Pottery" a few members of the group take a sailing class in the parking lot. One scene opens to the teacher commending them on their progress:
"When I look at you, I no longer see students. I see seamen. From the moment you came onboard, I saw seamen inside of you. More importantly, you stopped giggling at the word 'seamen'. Which is the mark of a true seaman."
Hilda: Now, obvious fact number one. Willard hasn’t asked you to marry him yet and obvious fact number two...
Salem: Hee hee hee! You said 'number two'!
Sabrina: Nothing like being embraced in the bosom of your family on the most special day of the year.
Salem: Hee Hee Hee! Bosom! You said 'bosom'! Ha ha ha ha!
One of the characters played by Peter Moon in the Australian sketch-comedy Fast Forward was a Jerk Ass who would break out into laughter when the person he was talking had a suggestive name or said a word with an alternate rude meaning.
Actually that was a character played by Michael Veitch, whereas Peter Moon played the Russian news presenter who turned most things said into a double entendre.
The Big Bang Theory, "The Lunar Excitation" has Leonard giving an overview of their experiment, mentioning that the laser beam on its return would be too weak to be seen by the naked eye. Zack laughs and says, "naked". Penny unenthusiastically laughs with him and immediately drops the smile when she sees how unamused Leonard is. Leonard plays nice and agrees that it's funny.
The Doctor: We've got comfy chairs, did I mention?
Angel Bob:The Angels have no need of comfy chairs.
The Doctor: (giggling) I made him say "comfy chairs"!
Boy Meets World had an episode taking place on a quiz show, and one of the questions was about the Fertile Crescent:
Shawn: Hehehe, he said "fertile".
If all the examples on QI were listed, we'd be here all day. But from the Jargon episode, Stephen Fry mentions ejaculation in the Sherlock Holmes canon, leading to exasperation from the panelists:
Alan: The canon.
Bill Bailey: Oh, Christ.
Stephen: As in the word canonical.
All this after a round that discussed the giss (pronounced jizz) of birds note The ability to tell a bird's species from its shape and size.
In King of Queens, Arthur states that the word 'pianist' "tickles" him.
An episode of Student Bodies has Cody taking computer lessons from another character. She remarks later on that she's having a difficult time because Cody keeps giggling every time she says "3 1/2 inch floppy".
In one episode of The Drew Carey Show the gang is staking out Drew's office at night, trying to get evidence that Mimi is up to something. They're forced to hide when Mr. Wick comes out of his office with a woman, goes to Drew's desk, takes a candy bar, and shares it with the woman as they leave. Afterwards, Drew is livid, saying "No one puts their hands in Drew Carey's drawers and pulls out his goodies!" Cue Oswald and Lewis giggling.
Overlaps with That Came Out Wrong in one episode of Castle. Beckett, Ryan, and Esposito throw open the back doors of a van where a suspect is using a rotary saw to open a safe.
Beckett: Let go of your tool, now! (Ryan and Esposito start sniggering.) Beckett: Shut up.
In the Greg the Bunny episode "Piddler on the Roof", when Gil berates the staff for laughing at the news of somebody peeing in Allison's car, they point out that Gil says "you're in" and laugh again when he mentions that Allison is pissed. Then Tardy laughs and points out "you said 'eventually'."
Fired Up discusses this, when one woman explains why she failed to have a conversation with an amorous couple: "...but you know what its like when people are having sex. Everything you say becomes a double-entendre. (Sigh) It's just so hard..." Her friend's response: "Heh heh — you said hard"
Heh heh, Meta
Used on this wiki; see Number Two for a good example.
Heh heh, Music
"Pinch Me" by Barenaked Ladies: "I could hide out under there/I just made you say 'underwear'..." In concert, that line often makes the audience throw underwear on stage.
Sometimes the audience will throw underwear before the second line. If this happens, Ed sometimes sings "I just made you throw underwear" instead. (emphasis mine)
Heh heh, Newspaper Comics
A FoxTrot strip references the Trope Namer when Paige, as a school reporter, asks a couple of students if they think Beavis And Butthead are realistic. Cue them doing the duo's famous laugh, followed by "...heh-heh, she said 'butt'."
In Candorville, Lemont's six-year-old lawyer makes a closing argument that repeats too many opposing points for comfort. Lemont shouts, "Get to the 'but' already!" The response is fairly age-appropriate.
A not-so-humorous example was thrown in when one character's mom had breast cancer. He mentions that he's one of the few boys their age who can say "breast" without giggling.
In One Big Happy, Ruthie makes a two-room birdhouse and giggles when her father calls it a birdie duplex. (Hint: Drop the last syllable.)
Heh heh, Stand-Up Comedy
Mentioned by George Carlin in his "Seven Dirty Words" routines ("And the cock crowed three times." "Heeey... it's in the Bible! 'Cock' is in the Bible!").
Also in his bit about words on planes. "I can't imagine why they wouldn't use a lovely word like COCKPIT! Do you?"
After deliberately dropping a double entendre, comedian Mike Harding turned to the audience in faux-indignation "what are you all laughing at? I haven't said nowt, me, it's you buggers. you're going to get me thrown out here!"
And of course Frankie Howerd's look of reproach to an audience laughing at the possibly dirty joke, and his protestations of "nay, nay!"
Philip: Oui, oui, mademoiselle. Tommy: Wee-wee! He's godda go wee-wee!
Heh heh, Board Games
Many contributors to the various websites and bulletin boards dedicated to the board game hobby relate stories about someone announcing a desire to play Cape Horn, published by Kosmos Games. This is one that definitely works better out loud than in print.
Kochamara: Fine, take control of this freaky toad! I don't need him to nab children for me any more. I've got the brain of a little girl- Raz: *starts laughing uncontrollably* Kochamara: -Back in my lab that's strong enough to power a whole army of psycho-blaster death tanks... *Notices laughing*What?! Raz: You've got the brain of a little girl? Kochamara: I said: "In my lab!" Raz: I think you've got the muscles of a little girl, too!
In Mass Effect 2, if you question the wisdom of Gardner being both cook and janitor, he responds:
"You have to pull your own weight on a Cerberus vessel, and I catch what falls through the cracks. Heh, 'through the cracks.'"
Sanjuro: Just ran into some stragglers who were trying to eat a cat. Kura:(sultrily) Can you say that again slowly? Sanjuro: Pervert. Kura: I'm having trouble picturing it. Maybe you could demonstrate. Sanjuro: "Maybe"? You must have amnesia.
Gal: "There's no room for feelings in speculative science!"
Guy: "Ha ha! You said: there's no room for feelings in speculative science!"
A spanish Webcomic have a death like mind creature trying to explain their mission. But the main character just kept giggling with everything. Then another character gave death a Pen scribbled dictionary. He asked if the crossed out words are the ones he can't say, but she answered that the underlined are the ones he can say.
In Lawrence Friday's Let's Play of Dante's Inferno, one of the commentators says that the cross (which is a ranged weapon) has "infinite penetration". The other doesn't miss the opportunity to make use of this trope.
In Ultra Fast Pony, Pinkie Pie is amused at the name of the buffalo tribe's leader:
Pinkie Pie: Haha! Bro! His name is Thunderbutts! Hey, bro! His name is Thunderbutts, bro, yeah it's funny.
Mr. VanDresen: You know, this could be a real positive experience for you guys. There's a wonderful and exciting world out there when we discover that we don't need TV to entertain us. Butthead: Uhuhuhuhuhuh, he said "anus." Beavis: Entertain us, "ain-us". Oh, yeah Mr. VanDresen: Did you boys hear a word I just said? Butthead: Uhh, yeah. "Anus."
In another particularly memorable instance, the boys watch the music video for "Detachable Penis", and proceed to snigger nonstop the whole way through, leaving the actual song barely audible.
In yet another Beavis and Butthead example, in one episode the school counselor asks Beavis about his plans for the future, discussing his "duties" at work.
Counselor: I see you're currently employed at Burger World, that's great! So which of your duties there do you like the most? *they laugh* Butthead: Beavis likes all his 'duties'. Beavis: Hehehe, yeah, yeah. Plop! Counselor: Well great, Beavis! But what type of duty do you enjoy more than any other? Beavis: Hmm, let's see, that's a tough one. Well, the ones that take a long time are kinda nice Counselor: I see, so you really like to get involved? Beavis: Oh, yeah yeah. Counselor: Get your hands dirty! Beavis: Well yeah, sometimes. Counselor: Something you can really sink your teeth into! Beavis: Wait a minute... Butthead:Whoa! You're disgusting!
"No Laughing" has this in spades.
Really, the two could do this with about anything. One music video had them discussing shiny pants, with Beavis eventually saying "But I DO shine my pants!" and then Butt-head pointing out that he said "douche". In one special appearance for the MTV music awards, Beavis says "We're gonna be Emmy winners!", then Butt-head says "You said 'B.M.'" A few early episodes have them laughing at the term "homeowners insurance", presumably at the "homeow".
Subverted in their 2011 return, while watching a clip of Jersey Shore. Vinny yells about how much Snooki "loves hot salami", they were unimpressed.
But played straight in another 2011 episode where they need to pass a standardised test to keep the school from losing its funding. The teachers spend the whole episode cramming as much as possible into their heads, and finally...
Butt-head: Woah! I just got something! Number two pencil!
That same episode also featured a subversion.
Butt-head: You said "hard".
Beavis: I say "hard" all the time. What's funny about that?
Some years ago someone took a picture of George Bush and Dick Cheney and distorted them to look like Beavis and Butthead:
"Hehe... You said 'Dick'." "Hehe... You said 'Bush'. Hehe..."
"Doomsday" features a rather obscure one.
Butt-head: He said "head of household".
In "Tech Support", the two even critique Hamid's attempts at this, first with "Microsoft" (which they determine not funny) and later on with "floppy", which they approve.
In a promo for The Movie, Mike Judge tries to film them but they are unable to cooperate as they keep laughing every time he says "Action".
Judge: Damn it! I have said that word over four hundred times! How can it still be funny?
Butthead: And what word would that be?
Judge: "Action". (Face Palm as duo starts laughing again)
Homer Simpson once did this to himself, noting that he was so bashful he couldn't say "titmouse" without giggling.
In another episode, Lisa complains to her friends that the new Malibu Stacy dolls are sexist. They start giggling, and one of them replies "Lisa said a dirty word!"
When Principal Skinner used a giant prop pencil while at a school assembly on tests, Bart naturally seized the opportunity and ran with it, with the oblivious Skinner only making things worse.
Bart: What kind of pencil do we use again? Skinner: Number two! Take a number two! [Kids laugh] Bart: Looks like you took a big number two! Skinner: Yes, as you can see, I am holding a number two in my hands, enjoying the weight and feel of it. [More laughter]
In a rare example involving Lisa being the one to laugh, she gets caught snickering (at something outside the window) in music class. Her teacher, having had his (unheard) lesson interrupted, says "Miss Simpson! Do you find something funny about the word tromboner?!" Lisa then has to fight the urge to laugh while trying to explain what she was really laughing at before.
Family Guy examples: In one episode, Chris asks Peter what he'd say about quitting the Boy Scouts. Peter replies, "I'd say, 'Come again?' And then I'd laugh 'cuz I said 'cum'."
In another episode, Lois starts, "The big meet is tomorrow and—" Peter stops her, laughing: "Did you say 'big meat?'"
To which she replies, "Oh my God, I did. We almost missed that one!" And then they laugh about it together, proving that marriage is a wonderful thing.
Also when Peter and Brian are putting together a crib.
One is the duty/doody variant between Mort (the one who says "you said 'doody'!") and Maurice in the episode "All King, No Kingdom."
The other occurs in "Cat's Cradle," when the penguins rub a stray cat's butt against a tree to leave his scent behind fool an animal control officer. When the penguins and the cat are in hiding, the animal control officer starts making comments involving phrases like "ifs, ands or buts," "the bottom of this," etc. and Private (who is the youngest penguin) starts snickering. He then loses it when their leader, Skipper, remarks that he hasn't seen Private like this since that time they were in Butztown, PA.
In Avatar: The Last Airbender, Professor Zei mentions the buttresses in the library, at which Aang and Sokka snicker. The professor asks them about this, and they reply, "We just like architecture". It must have to do with the word "butt" being in the word buttresses.
And when Kya mentions the word "duty" again, she takes a split second to tell Bumi "Don't laugh" before continuing.
The New Zealand cartoon Bro Town uses this almost every time someone says anything near Valea, even if there was a more obvious one in the sentence.
In the Dave the Barbarian episode "Rite of Pillage", Dave must pass four tests to become a real barbarian. His second test requires him to cause mayhem and destruction and ruin a few buildings. The name of the test: "Laying Waste"; Dave finds the name hilarious and tries to contain his laughter while the Pillage Master talks.
At the end of the episode when Dave passes his "Rite Of Pillage", the Pillage Master realizes the joke:
Pillage Master: Laying waste! I get it! (Laughs at his own joke).
In Archer, Archer meets Benoit, whose name keeps reminding him of a sex toy:
Archer: 'Cause, I mean, you know what it sounds like, right? Benoit: Oui, Monsieur. Archer: It sounds like "Ben Wa balls," Benoit. Balls. See? I can't even say it without saying "balls." Say your name. Benoit:(exasperated sigh) Benoit. Archer: Balls.
Fry: YES! I didn't think I'd escape with my doodle intact, but I pulled it out! Bender: Just like at the movie theater! WHOO!
When the crew gets sucked into a four-dimensional vortex in the Season 6 episode "Mobius Dick", Amy and Hermes' dialogue is played back in reverse after being spoken. Fry playfully averts this phenomenon by repeating a palindrome: poop. "Heh, heh, heh, heh! Poop!"
Edd: Yes, well, it's all fun and games, but merry-making nearly cost us this sextant. (beat) Eddy:Hehehehe...!... You catch that, Ed? (to Edd) Uh, what was it? I missed that. What's it called? Edd: It's called a sextant, an astronomical instrument used to— (Ed and Eddy muffle their laughter) Eddy: Again, sorry, I missed it. What's it called? Edd: It's commonly known as a sextant, Eddy— (Ed and Eddy both laugh loudly) Ed: SAY IT AGAIN, DOUBLE-D! (Edd thinks for a moment; cue Luminescent Blush)
An early installment of Space Ghost Coast to Coast had Space Ghost interviewing health guru Susan Powter, who called him "quite a specimen." Cut to Brak and his brother Sisto doing Beavis And Butt-head:
Uh-huh-uh...she said "specimen"!
In an episode of American Dad!!, after Stan gets arrested and the Smiths blame everything on a car salesman:
Officer 1: But why would they want to finger this guy? Officer 2: *giggles*
In Adventure Time, Princess Bubblegum does this in "The Creeps" after Lumpy Space Princess says she blinked.
Benson: When the balls drop... Mordecai and Rigby: *giggle* Benson: UGH! When the game starts...
In the shop class episode of King of the Hill, Bobby is working on a project for shop and Hank advises him to "clamp (his) butt joint". Bobby snickers at Hank who is oblivious to the joke and responds with: "You're right, joke's on me. You should use a miter joint, that would look better."
In the Gravity Falls episode "Irrational Treasure", Mabel gets a laugh out of Dipper's use of the phrase "booby traps".
At least one letter by Cicero makes note of accidentally obscene utterances (such as "illam dicam", literally "I shall say that", but sounds like a particularly obscene word for "clitoris"), making this Older Than Feudalism.
This article (on knitting using plant fibers) mentions the taxonomic names of four plants. Apparently the author thinks taxonomic names are scary, because every time, she feels the need to put some variation of "hah, I slipped another one in!"
A local radio station in Saint Louis started a contest called First of All on the morning zoo. They read a news article and you have to pick out the innuendo. Example: news story about a robbery where the robber entered through the backdoor...answer: backdoor. So, First of All: backdoor. Has caused a breakdown in normal conversation for those who listen.
On one of the shows on the BBC radio station Radio 1, there is even a game called 'innuendo bingo'.
A common response by chemistry students when their professors mention the chemical fucitol, or by students learning Spanish when the teacher gets to the verb poner (to put), whose past tenseyo puse, tú pusiste, etc. sounds like a certain word for, well, a cat.
We had that same wall when doing the classes of reflexive verbs. These are the -erse, -irse....and the -arse verb groups. Never mind that the Spanish for "arse" is el culo and that "arse" means nothing in Spanish, nor that this would only be encountered in the verb infinitive form and never on its own. Spanish really did become a whole load of arse for us that day...
Programming is rampant with this. No one doesn't giggle with they first hear that "friends can access private members."
Billy:(talking about Fangorn Forest) But within that, they're met by Treebeard, so they go from being prisoners of war to, like, the very bosom of nature, and it kind of helps them become hobbits again. Dom: Mmm... bosom. Billy: ...Did I say "bosom"? Dom:(whispers reverentially) Yeah.
Teaching people about certain things or words that have different meaning can sometimes have this. Genre Savvy teachers may say "Okay, get your laughs out now".
Sometimes, sheet music will abbreviate Ritardando with "Ritard", and sometimes people in band will say "That's retarded" when you play something wrong.
"Cleavage" in Geology, and "Cleavage Furrow" in Biology. Also "Cleavage Theory" in political science.
Foreign languages sometimes have words that sound like this. For example, a common verb in Polish, "być" is pronounced as "Bitch", but it doesn't mean it.
Or the time American biologists put together an acronym that resulted in their new protein being called SHAG, and then wondered why the British members of the audience cracked up every time they mentioned it.
The Swedish language contains a number of these for English speakers, for instance, we have "fack" (compartment like the ones in banks, for instance), "kant" (edge), and "kock" (chef).
"I heard lately of a worn and sorely tried American student who used to fly to a certain German word for relief when he could bear up under his aggravations no longer — the only word whose sound was sweet and precious to his ear and healing to his lacerated spirit. This was the word Damit. It was only the sound that helped him, not the meaning; and so, at last, when he learned that the emphasis was not on the first syllable, his only stay and support was gone, and he faded away and died."
Some people can't help giggling when hearing or saying "cockpit".
Visit a church around Palm Sunday and you're bound to see kids snickering about Jesus riding an "ass" through town (although some versions of the Bible use "colt" instead).
Similarly, the Christmas carol "What Child Is This" refers to the stable as a place "where ox and ass are feeding." Really, anything written before 1900 or so that mentions donkeys.
The French language makes it possible to do this with nearly any phrase, by turning "he's (verbing) (noun)" to "he's verbing his noun, nudge nudge", requiring a good dose of Freud Was Right and particularly unsubtle delivery ("he's rinsing the noodles" to "he's rinsing his noodle, if you get my meaning"). Lowbrow snickering ensues.
Separated by a Common Language has a fair share of these. "Rubber" meaning both a eraser and a condom, "Fag" being a cigarette and a derogatory homosexual term....
Often happens when certain words share sexual or insulting connotations in academia and other contexts:
A common joke in classical bands is to say "That's retarded" or "Retard!" - because that context means "you should play it slower".
Similarly, Bread retarders.
"Cleavage Furrow" or "Cleavage". One professor said "Okay, everyone get your laughs out now."
Teachers who teach Sex ed have to constantly put up with this since the class matures at a different rate from one another.
Other languages as well. In Polish, a common verb is "być"... which is phonetically pronounced "Bitch". One Tumblr story detailed a Polish-as-a-second language class in the 1980s giggling when a nun refused to say "być", causing the teacher to repeatedly say "No! It's 'Bitch'!", and the class (made up of multiple age groups) were stifling laughter.
Heh heh, Other
While group-interviewing Mark Hamill, Wayne Knight, Rob Paulsen and Maurice LaMarche, voice director Andrea Romano recalls how animators often study a voice actor's body language as reference for animating the character:
Romano: Even though you're not really using your body, you are in fact using your body. Paulsen:[nudges LaMarche] Actually, many people have used your body. LaMarche:[fake sobbing] I'm tired of it, I'm sick of it! I'm a human being!
The Brewing Network: Frequently used, especially by Doc. At one point they were using it so often listeners complained and they had an episode of The Session where using the joke was banned.